These newfangled things are similar to the new vehicles with the computers where entire component change is the norm of the day rather than repairing or adjusting an item.
Ain't it just. But having said that, the 2004-on rubbermount Sportsters are no different to a lot of Japanese stuff inasmuch as the cases have to be split to access the gearbox internals.
Face it, those 5-speed clusters in the current Sporty range are a helluva lot more resilient than the old Ironhead trannies, even though the latter didn't really deserve its reputation. Having said that I got two old Ironhead cases in my junk pile that i got out of a job lot of parts, and both of them have a dirty great big hole where the transmission's come out for a bit of fresh air. You don't see that happen on Evo Sportsters.