Meanwhile Dumbledore will have Tom flashbacks... How dare a talented student mind read.
Worse, he can't make her stop doing it! And can't himself mind-read her, for the same reason as Snape.
Hazel hasn't learned yet that everyone hiding thoughts from her is a liar, but she
will, when Marvolo betrays her, at which point Dumbledore will no longer be able to convince her of anything. (Is that why Hagrid haven't talked to her? Because he'd leak Dumbledore's role in Hazel's placement immediately?).
It's going to put Snape in such a bad light when they realize that he knows at least one of these. I mean... It's deserved. It'll be funny though. 🤣
I don't think it's possible to put him in any worse light. I mean, Dumbledore no doubt ordered his deputy to not exercise her authority over Snape, Minion Macgonagall said "Yessir!", and all staff are used to Snape's antics and that he gets away with them.
EDIT: This ^ is only a theory, but let's look at possible consequences. Seeing Dumbles give Snape a pass on more or less anything, McG decides to treat students like Dumbledore treats her ("shut up and do what you're told"), disheartened Flitwick stops paying attention to students' behavior altogether (explaining, but not excusing, theft of Luna's things in canon), Sprout's concern for the students becomes fake (can't stand up for her students, else her "friend" McG might... actually, might what? Yell at her? Curse her? Fire her? Fat chance of the last one. It's not like hiring a decent replacement is easy) - again, understandable if not excusable. Note how reining in Snape when he verbally attacks Newton (mentioned in ch.41) is not even considered - all effort is spent on "reining in" Newton, the student.
Seems like this theory explains the events. Anyone got a better theory?