My biggest issue that it's effects are hidden. If he wanted to just send everyone 10k i would be more okay with that as it would have to go to Congress and come from somewhere. Not to mention that it's going to relatively well off college educated students that made poor decisions. And it doesn't change the underlying problem with higher ed prices. If anything, it'll build the expectation of debt forgiveness, allow people to borrow more and schools could charge more.
This is just the worst of all scenarios