I have three testimonies from people who adjusted the brake lever height and that resulted in the rear brakes binding. Fortunately no damage as they realised that very quick and reset.
Our LC was last week adjusted by a rental and resulted in serious damage with the disc, calliper, pads totally cooked and destroyed and also damage to the swing-arm and mudguard
As per BMW no-one except a qualified BMW technician is allowed to do any adjustment in that area. No mention is made in the Rider's Manual of adjustment to the rear brakes, only the front brake leavers.
If the position is not to your liking then other (aftermarket or BMW) parts to be installed instead
This is interesting. But really, only two things are possible here:
1. The adjustment caused the rider's foot to rest too hard on the pedal, ergo binding the brake.
2. The adjustment itself caused the binding even without the rider's foot resting on the pedal, ergo design flaw?
In case #1 this would be true for any bike, not just the BMW, not so? But, would this also not happen when installing those pedals that allow a higher position for when you're meerkatting?
In case #2... well I dunno.
Interesting, nonetheless. Which is it?