I think we should stick to Gen 9 OU conversations but Genesect has been good for at least 4 gens, unless it gets nerfed, it'll always be an insane mon.
Considering Genesect would be losing access to its Gen 5-exclusive moves like Extreme Speed, Shift Gear, and Rock Polish, this may well be Genesect's worst Gen yet.
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I haven't really seen any Dire Claw mention for the past ~10 pages, and I think it's because people realize that the "nightmare scenario" of a +2 Sneasler putting your only defensive check to sleep isn't really all that common. Not only that, but I think more people should be aware that Dire Claw on SD Unburden Sneasler is actually a
suboptimal move. Your coverage is honestly better spent elsewhere, such as Fire Punch to swat away Gholdengo which otherwise hardwalls your ass, or even Gunk Shot for a way to blast apart Zapdos without even making contact. Shit, even Taunt could be more useful to be able to deny Clodsire and Toxapex of their healing and Toxic/Hazing, allowing you to break past them.
+2 252+ Atk Sneasler Gunk Shot vs. 248 HP / 220 Def Zapdos: 390-459 (101.8 - 119.8%) -- guaranteed OHKO
+2 252+ Atk Sneasler Fire Punch vs. 252 HP / 0 Def Gholdengo: 374-442 (98.9 - 116.9%) -- 93.8% chance to OHKO
The other thing to note about relying on Dire Claw to potentially bypass a would-be check is that trying to fish for the hax is almost always worse than just trying to 2HKO the threat standing in your way. The odds of landing the sleep and the opponent not just waking up the turn after anyway is ~11.22%. The odds of paralyzing and full-para'ing your opponent is ~4.25%. This thus amounts to only ~15+% chance of truly screwing up your opponent with your Dire Claw that can lead to a sweep. This is only marginally more than 'traditional hax' that we're used to, such as getting para'd by TBolt, frozen by Ice Beam, Rock Slide/Dark Pulse flinches, or even just plain crit, and is actually less likely than "Quick Claw" utterly blindsiding you. So yeah, while you certainly can complain about getting boned by a Dire Claw Unburden Sneasler sweep, it is not actually much more consistent than your standard fare of hax; if anything, Sneasler's hax can still give you a chance to come back (early wake-up or not getting full-para'd) compared to just getting crit and dying.
The most common instance of Dire Claw abuse I see from Sneasler are from Choice Band Poison Touch variants, the ones that pop in and out of battle spreading status and momentum as much as they can. They can afford to spread status with Dire Claw much safer since they're not committed to stay in (unlike Unburden variants), but this factor also makes their hax much more tolerable and fair since the Sneaslers don't have the ability to immediately hard punish you once you do get slept. With that said, you can by all means assess whether Sneasler as a whole is broken or not (especially since the Unburden sets can still be optimized), but Dire Claw is out of the question imo.