It is possible this is the reason but I suspect it is just a convenient cover story and even a form of advertising (for the school level that is).
As a parent I think it is a really bad choice for a game but these are the same team that had "anal stairway" in the game. https://i.redd.it/872ceu1lrmxy.png
This is the same team that spent years on releasing pretty screenshots and "coming soon" type of videos instead of focusing on the important stuff.
This is the team that announced trailers and then missed those release dates by a year.
They clearly are pretty bad at making decisions and are too close to the project to be objective.
Having said that the game looks and plays great. I think that the developers just need guidance and sadly Team17 could have given them it.