I think you are wrong there, he`s definitely not forgotten. Bruce just has a low profile and not in your face but if you are a TT fan then you know about him.
His problem is consistency , to slow at start or a slow lap mid race and that's where he looses it. JM has won a lot of races by being fast out of the blocks and consistent for 6 laps now most of the others realise they got to do the same to beat him.