Only downside to this is no one will get the 'honor' of beating tsa's submission at sda.
Nothing's preventing anyone from submitting a new run to SDA. As I recall, I thought several people were working on improved runs, but nobody ever submitted the new runs. You can still reference Marsh's or my run on Archive.org, and there's the threads here and on SDA with the most recent discussion. As somebody asked, I'm not sure why Marsh's run wasn't restored as the current run on SDA. Well, whoever does a run there has the "honor" of re-establishing the game as part of the current runs hosted on the site.