AgiPass is not all that awesome. Even if you avoid getting hard stopped by Roar [Electric-resist], among other things like ST Curselax Perish Song etc. (shit's all been mentioned), you can still quite easily only kill one or two things (and 2-for-1 is barely breaking even since Smeargle is all but dead weight).
Because Smeargle is 2HKOed by everything, it either has to Agility into immediate BP to avoid dying or sleep whatever it's out against. So alright, I switch to Skarmory following Agility and you BPed out because you're not going to Spore a standard ST Raikou. ;/ What are you doing at this point, passing Agility to a special attacker? Useless. Still bringing in Snorlax and hope to hit the 75% LK, then sleep lasts long enough to boost and kill? 32% chance (five-turn sleep)... 43% even with DE > Return, which is nuts since between Drum + recoil you all but guarantee dying after two kills max. Marowak can't do shit, Charizard
is shit. You need to win some serious mindgames to even set yourself for anything potentially better than that, because
way too many things will beat you if they switch in on the BP turn.
Even if they switch in on the Attack boost, post-AgiPass, there are still opportunities for decent trades. You can't OHKO Cloyster or Forretress which can both Explode on you, Suicune or Skarmory who can phaze, Miltank who can PAR. You only OHKO other Snorlax half the time and Gengar still outspeeds +2 Snorlax. (Umbreon also tanks a hit and Heracross can tank one from Marowak, but neither threaten to stop the sweep.) Reflect will screw you too if Smeargle switched into anything that carries it.
*shrug* I don't think the risk outweighs the reward, since you can just have SD Wak or Drumlax setup and kill something on their own anytime. That's kinda their schtick anyway. Sure, passing them +2 Speed can turn that one kill into a full-team sweep but it's way harder to setup over three turns than one. It's not worth wasting the moveslot on Agility, and especially not the team slot if your team isn't set to take good advantage of the shit Jolteon and Smeargle are actually good at passing (Growth and trapping, respectively).
Unfortunately, trap Smeargle is all but nipped in the bud by PO autobanning Sleep Trapping, even in casual matches, and still being the preferred simulator for old gens. I reiterate my call to push for PS, since obviously NetBattle's bugs will never be fixed. :(
golem has never been on a tier 1 team in his life. espeon -- as much as you and i or the next guy like him, has never really made a splash on the meta at all. and won't for the foreseeable future. same with clefable and pgon2, stuff that's been around forever but has never made it.
Hey man, I used Golem until I kept Exploding on anything and everything because Explosion is too fucking good (except I still needed Golem for other purposes.). And P2 is legit as fuck, it's just... not Snorlax. But then neither is anything else.