On the other, as you laid out, it's nothing more than an accusation with probably next to no actual proof.
Its a bit more than an accusation if the tribunal got to Investigation phase, there was SOME meat on the bone. It was not MUCH more than accusation given he didn't have any EO tasks and only a semester suspension, but he probably fucked his g/f while they were both blackout or grabbed some girl and kissed her. Maybe he just ran around campus with his dick out.
There isn't a "no contact" order, so the accuser(s) didn't feel a need to keep him 500ft from her at all times so she couldn't have been that put out by his behavior or he didn't make her feel unsafe; its entirely possible she didn't even file the complaint but it was filed by a roommate or other third party. There is no EO requirement so the tribunal didn't think he was going to repeat the behavior, the suspension was bounded so they wanted him back on campus the semester after.
But it WAS serious enough they decided to boot him for a semester.
PERSONAL SPECULATION is that his gf may not have been 21 and drunk; they let him have a University Discipline grope-court suspension instead of referring him to the actual cops for Underage Supply; this would explain the lack of EO action and the absence of a "No contact" order.
Additionally, his lack of attempt to expunge or otherwise go after UNC for some bullshit after he graduated.
Anyway, yes, this is being put on blast now to get back at him for unrelated stuff. So breadtubers in the ovens, but be mindful of how they're framing this.
tl;dr: #BelieveAllWomen .... except my lying bitch of an Ex!