Nebula does not like anyone asking questions and aggressively mods the subreddit. That's why you don't see any criticism whatsoever.
I think it's especially pronounced with anything to do with Dracula's Ex-Girlfriend. Wiskus himself replied to this one (before it got deleted)

There's some more guarded posts on that subreddit about "seeing things you didn't subscribe to" or "wanting to block certain creators" which is likely in response to how much Ollie's vampire short got plugged.
There's very little discussion elsewhere on Dracula's Ex-Girlfriend. If we're being charitable that might partially be because it's limited to being viewed on Nebula, and there's only about 680,000 users. I did find this on /r/movies

but that was in response to the trailer, not anyone who's actually watched this. There's only about 25 tweets about it since it came out - and that includes tweets from Ollie, Dave et al. with a big chunk of the remainder being Helluva Boss/Hazbin Hotel fans excited about seeing Brandon/Morgana. There's only 10 skeets on Bluesky. This thread may well represent the most concentrated and extensive discussion on the short on the internet.
Also there's merch, including some ludicrously flattering character portraits:




The use of the graffiti/bleeding heart image is a bit mystifying because that's not actually featured on the main poster, any of the PR releases or indeed anywhere in the short. It's just a random stock image they've slightly tweaked and started slapping on things
Holy shit that dress is supposed to look like that? Even on an actual woman it doesn't look that great
It looks
slightly better on a different model, more so in a different fabric


The idea of a metallic bust element that looks like it's made of gold coins is interesting, but the construction is too poor for it to really work. Even on the product photographs you can see the gold circles gapping and revealing the black fabric underneath, which wrecks the illusion and really it should have been backed with gold lame or something. Also the thing is too flimsy to hold its shape properly so it just becomes a shapeless strip of gold, rather than having distinct cups. Not to mention I don't think the cutout is actually adding anything because it really does create a "you put a backless dress on backwards and your bra is showing" appearance. Something more like this

might have worked a bit better, although it's not really having the same impact at that point... and would have still looked awful on Ollie as the wide neckline would still really over-emphasise his rugby player shoulders.