Its a problem if you don’t know to do it because the it is not intuitive if you aren’t familiar with hardware jumpers as a concept since this was one of the last holdovers from that era and befouled many a hobbyist. You build it and it “just doesn’t work” and “learn that jumpers are a thing” is pretty far down the list of things that most people troubleshoot when their new build won’t post.
Its a problem if you don’t know to do it because the it is not intuitive if you aren’t familiar with hardware jumpers as a concept since this was one of the last holdovers from that era and befouled many a hobbyist. You build it and it “just doesn’t work” and “learn that jumpers are a thing” is pretty far down the list of things that most people troubleshoot when their new build won’t post.