BMW takes their liability VERY seriously.
In the 21st century and with synthetic motor oils, there is ZERO reason your bike needs a motor oil change every 6K miles.
That interval exists to provide the dealer the chance to safety-inspect your bike more often. So does the light not being user resettable. The short interval is the ONLY reason BMW permits nonsynthetic motor oil--something they do NOT do on their cars which feature 21st-century-norm 15K miles change intervals.
It's not unethical and not cheap and it's not poor design. In fact there's no one on this forum qualified to judge automotive design.
There's no "entitlement" to cheap motorcycling.
What Liability do you refer?
Not sure how you know 6k is good or bad on oil? I test my car oil and at 8500 miles on 0-20 full synth I was told to back it down to 8000 for my next change to see if the some of the wear levels are dropping on my Honda Accord I4. It only has 15, 000 on it now. And I am not running a clutch in the same oil as on the RT.
The only way you can know is test your oil which I will do on my next change on the RT.
It is unethical for BMW to force you to go to a dealer to turn a nag light off. Your bike and you should not have to pay to turn off a nag light. I dont have to in my Accord even though I have a dash nag from 15%- 0% I push the odometer button and it shuts off to the next start. When I change my oil I go into settings on my display and reset the oil minder and it is good to go.
Entitlement begins the day I drive it off the lot, period! I paid for it and I can do what I want with it no matter what. And if somehow I void my own warranty it is my right.
I have a GS 911. I also have a great dealer. He just set my turn signals down to the lowest settings and I got two updates. Thing is it is just not a simple thing to do the computer has a mind of it's own so hooking to the computer in my case was almost 1/2 hour connected, turn this on/off, activate brakes and other assorted things through the process. The previous Service Manager used to charge 1/2 hour labor for all hook ups unless in for a service. I can see it for sure as it is time in the shop and someone has to baby sit it.
To me it is as wrong as saying I must use your oil, as you lock me into having to come to a dealer and incur a cost for something that is my responsibility and my right to do, or not, as I please with my own property.
You have a very strange outlook on who owns what and what is right and wrong for the consumer. Mostly you are just plain wrong on every one of your "points".