Certainly understand your point.
For me personally it won’t be an issue. Some of my Sinns are thick (my largest is 17mm, with a domed sapphire and wears thinner).
My 358 for example has the cut away case you mention and the dome (it is 15mm thick). Wears thinner.
I actually find it wears similar to my 13.2mm thick Seiko SPB153.
Anyway. I look forward to giving one ago. :)