I wrote that ruling just to make my life easier. Currently, I'm the only person that actually submits runs and I do it through the itch launcher as a standalone program. I didn't even know that the web browser uses an emulator. Obviously a web browsers submitted game would be verifiable, but I doubt people would read "play it through itch" and jump to the conclusion, that the web browser version would be denied.
but again, currently, this is all theoretical. In the end, I wanted a simple to understand ruleset and wait for other runners to share their perspective. It's all up to change if/when others submit their runs
on a side note, 1.4 helped me achieve a massive 9:43. Not in-game time, Real Time!!!