There’s something wrong with that class. And it’s a big enough issue to last through all of October (as this arc is scheduled to have 71 comics and we’re currently at 25).
In real life, you are right. But considering this is a comic strip that is clearly not set in the real world, and that this same school was previously shown to have a class of superpowered students, real life logic obviously does not apply here.
There’s something wrong with that class. And it’s a big enough issue to last through all of October (as this arc is scheduled to have 71 comics and we’re currently at 25).