Haru has OPINIONS about mind control in Harry Potter. The casual references to love potions - the author decided to heavily imply that being conceived under the influence is what made Voldemort so evil but has nothing but amusement in her heart about schoolchildren sneaking doses to other schoolchildren, or the less overtly unpleasant of the Potions teachers possessing Amortentia for some reason and displaying it in the school when the school's security measures for in-universe-taken-very-seriously items of value can and have been bypassed by eleven-year-olds.
The Obliviation, on so thin an excuse for having a masquerade that it would have been better not to bother to try, and where they don't Obliviate it's because they can instead coerce and intimidate, as with Harry's relatives; at no point does any wizard ever try to convince anyone they could instead casually overpower or extort. Particularly egregious in the case of Hermione's parents, who by rights ought to have been convinceable and whose ignorance wasn't even legally mandated, and who instead are replaced with versions of themselves who yearn to move to Australia and don't have a daughter, which, if she'd died, would have completely denied them the opportunity to ever remember and grieve their child - she doesn't even give her allies a way to look them up afterwards for the case where the good guys win their conflict but she herself doesn't happen to survive - and given that she didn't die and one might generously presume she put them right later (it doesn't say), presumably created some dreadful emotional fallout, about the resolution of which absolutely nothing is said.
Comparatively speaking Haru is not that fussed about the Imperius Curse. That is, it's obviously an atrocity, but it's not worse than a memory charm. It commandeers the self, but it doesn't undermine it, though prolonged use obviously has plenty of opportunity to undermine someone's relationships and personal boundaries and life plans. A student learning to throw the curse off who jumps onto the desk when so commanded can still come to terms with this eventuality on their own time without any gaps in their ability to do so. And the exercise seemed to have more of the (ostensibly) intended effect than the Occlumency lessons, which -
Legilimency! Fucking everywhere Legilimency! Good guys doing it, bad guys doing it, everyone acting like it's a neutral skill! If Haru lived in this setting he would fucking LEARN the Occlumency, even if no evil wizards seemed to be specifically after him and even, perhaps especially, if he hated his poorly-thought-out assigned teacher who kept trying to read his mind as an ostensible form of education; it doesn't even sound hard, though, like, obviously whether something that doesn't exist sounds hard to someone reading a book about it is not necessarily indicative.