Give Microsoft a break
My kid has been using the edu version of Minecraft in school this year and he's loved it. They've been building virtual Anderson shelters as part of a WWII project. They talk about what would've been in them, location away from the house, the visibility from the air, how many people would need to fit inside etc. and most importantly he's enthusiastic about the project and really learning the subject.
Making school more exciting for children is a good thing and Microsoft's intentions in providing fun and engaging tools should be praised.