You must be new to the internet. Welcome, we have memes. Some are older than others. One old meme was spaming "Half Life 3 confirmed" when any valve news happens.
I hope you can better enjoy the internet now that you know tjis! And again, welcome!
It's a hero shooter/MOBA and IceFrog (DotA designer) is working on it. That's enough on top of the Valve factor to at least make me curious, even though I otherwise share your sentiment.
I've heard the explanation that they're not working on the half life series because they want to have bigger leaps in innovation, but then they work on a moba/hero shooter.
They have all the talent, budget and time they would ever need. No amount of hype will ever detract from a good game. Hell even cyberpunk managed to stay afloat after a disastrous launch and will be remembered positively by people that played the patched versions. I don't believe the hype thing either.
I've been playing the playtest version and I find the game is just okay. It's basically exactly like Dota but 3rd person and with movement mechanics like dashing/slide/double jump. It feels and looks great but there's just so much going on that it feels like I'm constantly missing something. I think the skill ceiling will be incredibly high.