Exactly. Gifted and bored.
Or maybe the classes are too full of kids so those that need the individual attention aren't getting it.
and yes, CPS does have that power. Trust me on this. If they can justify a reason to take a child, even if it means making up the allegations themselves, they will do it. If they believe you aren't the best possible parent for your child, they will extrapolate on allegations until they have everything they need to take your child.
You're poor and on welfare? Can't provide decent housing? Instead of helping you find cheap, decent low-cost housing, they'll take your child because you can't provide "adequate" housing. Not enough food in the fridge - especially the day before check issue? Neglect and starving your child.
I could go on.