I don't think this is a better ergonomic solution than what's out today. given those misplaced left gaming keys.
Ergodox is the best out.. seconded by ergodoxez (needs holes drilled for higher tenting) , followed by ergo pro (needs holes drilled)
Everyone has their own personal preferences, so obviously opinions will vary, but the "gaming keys" on the left are based on feedback from years of experience with the original Freestyle/Freestyle2 and other research, which can be useful to a lot of people. I use the Advantage2 myself, I believe it's the best ergonomic design based on my own personal needs, but whenever I use the Freestyle Edge (prototype) I use the gaming keys for my dozens of macros that help me navigate through the OS since I rarely ever use a mouse (macros like Alt+Tab, Shift+Tab, Ctrl+f, Ctrl+Shift+Esc, etc. etc.). I like having those keys there rather than having to create macros using a modifier key or replacing keys I may already want to use (or having to use the Fn key which is just adding another key press).
If the tenting angle shallow, It doesn't really matter that those keys are on the outside edge.
But if the tenting angle is Higher, suddenly those keys MUST go somewhere else..
So, as an engineer, you have a choice, make the solution that would work with all potential tenting angles, or put it somewhere which may be suboptimal for a range of higher angles.
This is not user preference or feedback issue, this is a segment of use scenarios which you're not covering, that could be done at no compromise to cost or complexity.
Now, as far as angles go.. The neutral wrist angle while seated, is approximately 70 degrees from the desk plane..
With the thick keys, you can get to ~55, while the thinner board can go higher..
The goal is ergonomics.. the wrist problem is the biggest issue surrounding long use discomfort..
So part 1, you're designing the product that covers the broader market/ use case "more angles"
PART 2, you also have to invest in some consumer education to wise them up to the better-ways to use your product, higher angles..