By not optimizing for file size with Crinkler, the executable grows by a factor of 4 and RAM usage shrinks by a factor of 300. This build will probably be made available to people who value 500 MB RAM per running instance more than the 9 kiB of disk space saved (I assume that's anyone wanting to use it in practice).
They do, in the linked GitHub issue:
https://github.com/PlummersSoftwareLLC/TinyRetroPad/issues/21
Apparently, that's just sitting idle.
By not optimizing for file size with Crinkler, the executable grows by a factor of 4 and RAM usage shrinks by a factor of 300. This build will probably be made available to people who value 500 MB RAM per running instance more than the 9 kiB of disk space saved (I assume that's anyone wanting to use it in practice).