As long as the game doesn't appear to be a modified rom, and they don't use the save states that some Everdrives come with, then there shouldn't be any issue. Looking at your board, you don't separate emulator and snes runs, so there shouldn't be any issue with their submissions (with the hardware/software inbalance part).
Personally, I would inspect these runs thoroughly, just to make sure no save states were used in these runs. If you do not feel confident with the legitimacy of the runs on this hardware, you can always reject the two submitted runs and list in the rules that Everdrives (or third party software which modifies consoles) are banned. Once again though, I would try to lean more on the side of allowing these runs, unless there is something that leads you to believe that they may be cheated.
There is already a very large unofficial Speedrun discord. I recently left the server, but I'll edit this message with the inv once I find it (It has a dog cover image if people know which server I'm talking about).
You can submit to the game form of this board if you want this game to be added.
(Also scratch series when?)
My F tier:
Flipping legend: only reason I mod this game is because toaster wanted to leave moderation of the game, and I didn't want a board to go moderatorless
Among us clicker: series mod so I have to mod
Among ourselves: series mod so I have to mod
since this was bumped, here's my updated list