Well, personally I'd say it's moreso "manageable" over "healthy". No tera meaning it can't tera fairy past gambit/ting-lu is useful, yeah, but what else does the ostrich do? It genuinely just contraints teambuilding, forcing unaware/phasing + darks to make sure it doesn't get too far into it's stored power shenanigans, which really isn't something we need as of well, any metagame state. It's not healthy imo, cause a cheap wincon remains a cheap wincon, no matter if it requires a click of a button or a click of multiple buttons (few spike layer chip rounds and even +1 dgleam's damage starts getting ting dangerously close to dying, gambit even moreso. Now, may I ask, else from being a stored power wincon, what does it even do?
It doesn,t do anything else, but it doesn,t look that dangerous as a Stored Power sweeper either. You are mentioning hazards, but take into account Espathra is ALSO affected by them. The opponent knows there is an Espathra and it has enough sure, 100% counters regardless of the set:
1. Alolan Muk.
2. Skeledirge with enough Sdef and Shadow Ball.
3. Roar + Roost Empoleon. Espathra won,t be able to get past it. At +0, Espathra doesn,t threaten anything, so regardless of the Mon that it will appear vs later in the match, it won,t be that hard to beat.
4. Excadrill.
5. Scizor.
6. Kingambit.
7. Metagross.
8. Jirachi.
9. Throat Chop Ting-Lu (better if it also has WW).
10. Scream Tail. It won,t be beating Espathra, but it will use Encore so that something else kills it.
11. Tyranitar.
12. Heart Swap Manaphy.
13. Haze Milotic.
14. SD Necrozma. This is notable and viable in OU since Photon Geiser ignores Dondozo. Vs Espathra it will obviously use Knock Off.
15. Iron Boulder. Resists Psychic too and attacks from the physical side.
16. Ceruledge.
I purposely left many Mons that are currently considered non viable in OU, all of these are to some degreee. I could have mentioned Incineroar, Araquanid, Snorlax, etc.
Hopefully the discussion dies here, won,t be answering more posts about Espathra. We are still in Tera OU regardless.