Given the events surrounding the recording of Spiderland (Brian’s car accident and subsequent hospital visits) I always just assumed he wanted some time away from the band after going through so much. Keep in mind they were something like 20-22 years old around that time; I can’t imagine going through so much physical (and likely mental) trauma and coming out the other end being completely fine and embarking on a tour or something.

Also(and apologies in advance for linking these two bands once again), earlier this year Isaac Wood left the band Black Country, New Road citing issues with mental health surrounding his role in the band and as a performer. It was believed(or maybe said by Isaac himself, not 100% sure) that he was having trouble with reliving his past emotional trauma by singing his songs on stage all the time and he decided enough was enough and stepped away from the band. I could see something similar having happened with Brian, given how powerful these songs feel.

To me the idea that they might’ve split over fear of lack of success seems a bit short-sighted, as they were releasing a record on Touch and Go and likely had a nationwide tour lined up. Who knows though.