Regarding Hyper Cutter, it's more debateable. Both abilities can be used effectively; as Hyper Cutter lets you beat Gyarados and Salamence- both of whom you'd need +2 and flying Gem to OHKO with Acrobatics. Hyper Cutter prevents your attack stat from falling, so Intimidaters aren't as annoying. Poison Heal can be used, I guess, but the chances of you getting poisoned are relatively small. I don't see the need to put it in as neither will be used very much.
Couple of problems with this, firstly, Salamence used Intimidate 23% of the time while Moxie hit around 76% (Yes im aware they don't add up to 100% but fuck tiny decimal places). In addition, in my experience Salamence doesn't switch into Gliscor anyway very often, potentially because Gliscor often packs ice fang, and it struggles to beat Gliscor anyway.
Gyarados is perhaps a better example, since Intimidate and Moxie are used roughly equally. Hyper Cutter is also good against Landorus-T I guess, although I am prety sure it needs HP Ice to win. All of these examples are pointless however, if you manage to get up a Substitute before they switch in so bear that in mind.
In contrast, Poison Heal is actually pretty nice on AcroBat Gliscor, but you absolutely need to switch in on the Toxic, and thats pretty tricky to do when most comonly, its water types hitting the Toxic. Outside of that your switching in on Blissey / Heatran / Ninetales and hoping they spam Toxic, which is still a risky switch in the case of the lsat two, as fire attacks will do a fair bit. Its 50/50 either way I think personally, but I think that real problem is that I am unsure how good AcroBat actually is without Sand Veil. With Sand Veil, you had an excellent chance to smoke Rotom-W because it only had something like a 60% chance at hitting you with Hydro Pump, without Sand Veil, its much trickier. Sure, Rotom-W gets smacked with a +2 Acrobatics but I think this set needs QC input before it goes further.