MineralGreyMetallic here is a VERY generic statement from Les Schwab tires about how wheel offsets affect handling:
Too Much Negative Wheel Offset =
increased steering wheel kick-back
Additional stress on the entire suspension
Poor handling
https://www.lesschwab.com/article/wh...with%20braking.
Some other considerations mentioned in a Motor Trend article:
scrub radius affected, wheel kickback, "effective wheel spring rate", wheel bearing loading
So yeah, it seems like there is certainly evidence of wheel offset having various affects to suspension performance. However, we have all seen many cars on the road with all sorts of offsets/lowering/camber and the cars still drive. So, what is the true magnitude of these affects???? Hard to say without having all sorts of kinematic modelling and full suspension design models available.
These subjects are much more difficult to get actual data available on (as opposed to temperature based subjects where measuring data is much easier). BMW "M-Performance" options certainly seems like a highly reliable data point to what is "totally safe", and then reputable wheel suppliers seem like the next best option for validating a design choice. Third data point I would look to is people who are tracking their car with the wheel choice you are thinking because they have certainly stressed their system more than an average road use case.