Well I certainly agree with many of the points raised by the OP. Yes, having come from MB the BMW cruise without distance control is disappointing. So too is the absence of an automatic boot (trunk) close button and I do miss the rev-matching on downchanges I had on the older M6. If it does rev-match I just don't hear it.
My biggest disappointment though is the range of adjustment on the driver's seat. For me at 5.8 it's just too low even on max height. I understand the arguments for low centre of gravity but I prefer to have a good view ahead. I doubt though anything can be done to improve it.
Having said all that, it's a great car that could have been even better