This seems to be it. It says they break out of the endless summer vacation. It also says the animation director is Takahashi Mariko; if you know her touch, you can see whether this arc ends or not the moment the next episode begins.
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Are you going to say "budget"? Wait! Is your point really related to budget? Isn't it time or style?
Simply put, production time is consistency, and budget is framerate.
Even poor animation is costlier than a high-quality still shot.