We don't hear anything about Antonucci
Lupo the Butcher
Also, we didn't hear a lot of what was going on in the pre-social media era. These days a panda farts and everyone in the world hears it. The fact that we hear more rumors about what Hirsch *might* be working on these days has more to do with access to the rumormill than there being more rumors.
We hear that he has this multi-million dollar deal with Netflix
As stated, Netflix gutted their animation productions. A lot of people who had upcoming shows got scrapped
We hear that he's gonna be involved in Spiderverse-- oh, it ends up being an uncredited writing role
So he WAS involved in Spiderverse
We hear he's gonna be involved in Detective Pikachu
He was asked to consult on the very early story phases. That ended up not happening, but anons ran with it anyway.
it's an unfinished storyboard with some model sheets
No, that's just what happened to be leaked. That work is under NDA, so someone fucked up by letting it go public (accidentally or purposefully), but that doesn't mean that's the sum total of the work that they did, nor do we know if anything we saw was even finalized.
He worked on story for Kid Cosmic, Mitchells vs the Machines, Inside Job (which he also helped produce), and voice acted for stuff like Tales of the TMNT, TMNT Mutant Mayhem, Big Top Burger, Inside Job, Amphibia, The Owl House, We Bare Bears, Star vs The Forces of Evil....
Seems to me that your biggest gripe is that the rumors you hear don't end up being true.