Targetshooter22 pretty much got it. Those reasons are the ones most cite as being why the mag disconnect must go! Your mags dropping seem to be a recent "fix" that possibly Ruger got right.
Seems almost everyone starting a few years ago had problems with the mags dropping. I, myself, had 3 Rugers (Target, Hunter and Standard) that would
NOT drop the mags and they needed (in one) to be pried out with a small screwdriver!
But more and more, lately, it seems folks aren't having this issue. Hopefully Ruger picked up on this problem and addressed it. That's my opinion.
You seem to be one of the lucky ones. Remove the bushing at your leisure.