Their excuse for not using gate is garbage. Even if the rest can't handle them alone, they have tons of members, and like hell Shin's gonna lose to them. Just split them into two, have one force come from the royal capital. Even for the powerless knight team that they're worried about, you could still teleport to earlshide and look for them from there cause it's closer.
Even their comm device somehow doesn't work for.. I don't know what? But even if they still want to go with their dumb plan of pursuing them from one side, they don't actually need a comm device to inform the capital. Just zip in and out with gate to let the king know.
This manga always has bullshit excuses because they've already made their characters OP as fuck.