Deon, I assume you shoot FF -- is that right? Do you have the v2 of the 24 TSE? And for the 90mm TSE was the the v2 "macro" (or the original v1)? Thanks for telling me about the 90mm!
As I mentioned, I owned the 45mm TSE and like others found it unacceptable in terms of sharpness. Perhaps that is why users are looking to the 50mm TSE as an alternative. I believe that my 50 macro will outperform my old 45 TSE which I sold (for $250) and will report when it arrives.
In a wider sense, the "macro at distance" controversy has been around for a long time and I see your point as far as optimization of the optical design. Surely that is true. That being said, in LF even lenses like the Nikkor 300M Macro were widely used for landscapes at infinity. I still use one in my HABS work and it is razor sharp at infinity.
About the 17mm TSE I was ready to get one, but when I look at test results (even in Canon "Masters of Light") I notice that in vertical position with much shift up, the images appear to go soft of that top. Some are using focus stacking as a workaround but I don't have the time to combine multiple shots in my work. If your shift range is more conservative it may be a non-issue but I expect more from a lens of that cost. For superwide on FF I will continue to use my 16-35 L.
Thanks again for your most welcomed note!
Paul