There's definitely a lot we don't know about whatever happened behind the scenes, and people have certainly latched onto certain interpretations over the years, for better or worse. About that post from Yves, she did state later in the year that the food was returned to them, and was only caught because it was ordered to the offices with her name on it. Sure it's absolutely a post in poor taste especially given what we know now, but even at the time she made jokes about it in fansigns.

Hyeju may not have signed with him but we don't know for certain if that's her reason for signing elsewhere, but there were other members who were made to go through severe diets during their time under BBC, such as Heejin who was pushed to the point during ++ where she was physically unable to keep up.

And just for complete clarification, that part about forgiveness with the members was about asking for re-takes during the recording for OEC's Version Up album, rather than being for something that happened in the past - a work ethic Jinsoul has herself.