That depends on how many years sooner. A few years sooner no and then you’re right. Years sooner meaning close to the time it happened than yeah, according to Herb he would have forgiven him and welcomed his friendship.
All BoJack would have had to say is look man I really tried but that Angela had me by the balls. Which she did and Herb could understand that.
It was the loss of friendship and support Herb needed that was the real transgression. But it did deliberately show them becoming more distant as BoJack became an obnoxious star so they really weren’t that close at that point.
Thank you for summarizing this. Also, add to number 4 he went back around all of his exes for Hollyhock in spite of his discomfort.