A bit of context to help digest what happened in the chapter:
1. Inter-regional rivalry between prefectures and cities
Places which aren't large and have things going for them like Tokyo/Osaka does tend to be a bit insecure about what they have to offer, and they're fighting for scraps when people want to visit the countryside for tourism. Nagoya slags Tokyo in chapter 19, Kyushu cannibalising itself in this one, etc.
2. The countryside is dying
With the population declining and people moving away from smaller prefectures and cities, there's negative growth and a drop in the economy in these places. Apart from there not being much to do if you're a younger person, the amenities and transport just aren't there which means that it's less appealing to raise a family in these areas. Larger cities are walkable and you don't need to have a car to get to places, unfortunately cars are indispensable in places like Miyazaki
3. Going to Tokyo is special
Tokyo is where everything happens for younger people. There's a term called 上京 where you're going to the capital Tokyo to start a new chapter in your life. This allows people to see the contrast between their hometowns and Tokyo, which makes things like the subject matter in this chapter extra-significant for Japanese people.
These chapters involving lesser known areas and cultural topics, yes, a bit hard to read for us and the punchline misses. If I see 'meh' chapters from now on, I'm just going to TL and releas 2 chapters back to back so you guys don't have to sit on a chapter like this for a week