Tested with novices and people from other realms, and also quite a pandora following. Those people left the rather stagnant discussion when it was done. Nobody wants to see a forever changing theme over a variation of a keyboard they cant type on.
If you don't have the explanation provided with the layout, the modularity fails, i never pretended anything else, i just dont provide it, and the explanation i did provide, wasnt included. People expect it to be a basic english layout, ironically what i wanted to avoid, but alas, singlewide space works. You can try it yourself.
The point about research is you can conduct a trial yourself.
Trying stuff on someone who isn't initiated in the whole discussion is very valuable, it is also the bulk of the market.
Even if you think international letters on a keyboard amount to just 10%, why not have that 10%? Free bonus.
For devices having singlewide non-centered space, there are no problems just as there are no problems with no dualwide shift and enter on the pandora keyboard. There are examples of dualwide for those things too on two-thumb keyboards.
If you want it in a vote, look at "
How should the QWERTYUIOP row be aligned?"
Single vs dual is at 33 vs. 51 now, steadily climbing.
Functionality
enjoys a lot more popularity than non-functioning visuals.