I mean the way Devon has been written is okay, i have no problems about that, one of the best routes i'd say.
But the important part there in what you said is "CAN BE". Not always, not a rule and not the route that this novel attempts to go. For me if Devon was a major teacher for MC id see it as taboo of power dinamic, but power dynamic only by age gap? meh
Okay okay wait wait waiiit first of all, i cannot believe my comment got noticed it makes me feel great,happy and exist for once. And as shocking to say this but i can't help by notice that i saw the word "Taboo" and don't know the meaning about it, i know the google is just a few taps away here and there but i wanna hear it from you because i've made alot of mistakes for trusting the google when it comes to translations.
Also i can't say anything about Afterclass since i've played it only once like last month , the free version which is the Demo i think and its because i'm too broke to even afford in any subscriptions on their Patreons.