I ain't reading all that but good job manI chalk it up to one (or more) of these:
1.) Plot Convenience
If they took the carriage, the story would end with them leaving the Kingdom of Terraria, which would mean leaving the rest of the cast behind, which probably goes against the author's wishes.
2.) Feasibility of Taking the Carriage
After sniping, both Mize and Tweight weren't paying attention (or couldn't afford to pay attention) to the carriage anymore, being preoccupied with the fight against Oz, which Chris may have taken advantage of to reposition elsewhere. After the fight, while Tweight assumes Chris was near enough to provide first aid to Oz, there is still the issue of finding Chris and taking the carriage. However, since Tweight and Mize lost their carriage, they have no reliable means of chasing down Chris in her carriage, should Chris decide to reposition again (seeing as both Tweight and Mize are on foot). Coupled with the injuries Tweight sustained during the fight (and the fatigue Tweight and Mize had been accumulating), they may have decided against taking the carriage, since Chris could continue to reposition until Tweight and Mize give up on it, rendering chasing it a fruitless endeavour.
3.) Conflicts with Tweight's Ultimate Goal
At the end of the chapter, we know that Tweight ultimately wanted to return to the Kingdom of Terraria (and by extention, their friends) with Mize, since it's what both he and Mize ultimately wish for. They see this wish as something unattainable, which changes (for Tweight) upon their discovery of the colony of the Divine Herb Exa, when Tweight begins to formulate a plan to use it to bargain with the King of Arcadia and the Bureau for Mize's freedom. This could also explain why he didn't want to kill Oz and Chris (besides the fact they he knew them personally), despite previously having no problem disposing of other assailants from the Bureau, as he didn't want to antagonize the Bureau further, which could have rendered his plan moot.
4.) Tweight was too tired
He was just too tired to think about doing that. (Ties with Theory 2)
5.) Plot Hole
Or it's just a plain old plot hole.
Please take these theories with a grain of salt, as these are merely how I rationalized this event, and are not indicative of the author's thoughts whatsoever.
TL;DR:I chalk it up to one (or more) of these:
1.) Plot Convenience
If they took the carriage, the story would end with them leaving the Kingdom of Terraria, which would mean leaving the rest of the cast behind, which probably goes against the author's wishes.
2.) Feasibility of Taking the Carriage
After sniping, both Mize and Tweight weren't paying attention (or couldn't afford to pay attention) to the carriage anymore, being preoccupied with the fight against Oz, which Chris may have taken advantage of to reposition elsewhere. After the fight, while Tweight assumes Chris was near enough to provide first aid to Oz, there is still the issue of finding Chris and taking the carriage. However, since Tweight and Mize lost their carriage, they have no reliable means of chasing down Chris in her carriage, should Chris decide to reposition again (seeing as both Tweight and Mize are on foot). Coupled with the injuries Tweight sustained during the fight (and the fatigue Tweight and Mize had been accumulating), they may have decided against taking the carriage, since Chris could continue to reposition until Tweight and Mize give up on it, rendering chasing it a fruitless endeavour.
3.) Conflicts with Tweight's Ultimate Goal
At the end of the chapter, we know that Tweight ultimately wanted to return to the Kingdom of Terraria (and by extention, their friends) with Mize, since it's what both he and Mize ultimately wish for. They see this wish as something unattainable, which changes (for Tweight) upon their discovery of the colony of the Divine Herb Exa, when Tweight begins to formulate a plan to use it to bargain with the King of Arcadia and the Bureau for Mize's freedom. This could also explain why he didn't want to kill Oz and Chris (besides the fact they he knew them personally), despite previously having no problem disposing of other assailants from the Bureau, as he didn't want to antagonize the Bureau further, which could have rendered his plan moot.
4.) Tweight was too tired
He was just too tired to think about doing that. (Ties with Theory 2)
5.) Plot Hole
Or it's just a plain old plot hole.
Please take these theories with a grain of salt, as these are merely how I rationalized this event, and are not indicative of the author's thoughts whatsoever.