Yes they do. Canonist says "you have to kill me to win" which actually *does* keep them from winning T3/4 because unless they have natural kill-spell/bounce they can't wish + kill it in one go; and even if it were another hatebear, 5-6 mana is a lot for thalia and 4-5 mana is a reasonably high amount to waste on your "go off turn" if you have Teeg or some such.
My complaint is also that Spirit does roughly nothing IMO since it doesn't stop any means of attack (PiF chain, AN, natural Warrens/Tendrils.) You're banking on them needing to cantrip instead of them having the unlikely "I have 4-6 extra mana AND an extra wish." When a deck can reliably go off T2; you need something that says "you have to wait a turn or three"; which gives you time to beat in, set up DRS with open mana (or other grave hate), and get their life low enough for AN that they can't reliably use it. This leaves them with natural warrens/tendrils.
8 discard is a good start, but you need things that say "you can't win" and I really think it should be 1-2 more hatebears (or a 1/1 split with a second tutor.) The reason is because they can just topdeck their win out of nowhere. SS is good here. Canonist is good here. Tutors are OK here. I think I'd even prefer a bunch of Scullers to the Spirits and Oring.
Also, how is Pithing Needle storm hate? On lands? I feel like you've played against ANT too much and not TES; which FME is generally much stronger. Revoker is OK hate, but Needle doesn't do anything here unless you're getting a lucky fetch with it. Cage is fine to board in, but I don't count grave hate as storm hate generally since they don't have to rely on PiF to win.
If I'm honest, I don't like O Ring as S&T hate either. You have to show it to them first, they have to not have sneak attack and it's pretty bad against Griselbrand. I feel like if you're going that direction then you should go Ensnaring Bridge. It doesn't matter what they Show into play then and you are guaranteed safe while you're plinking them with DRS. O Ring isn't generally good for Omnishow either; given that they typically want to go off in a "safe" way (trickbind with wish) and with a Tutor you tell them that they want to go off "now" or with a wish; depending when you do it.
I realize why you have Seal, I'm just saying that it's pretty garbage. You could do the same thing with a light green splash (1 Bayou, 1 Savannah?) and use Decay or you could use QPM in the same manner you're suggesting.
I also feel like using pack rat without
Mutavault is weird. It's a free combat trick that happens to be decent against miracles as is (manland) and you're running 25 lands. If you're going to be 2-3 lands above normal those slots should pull their weight.
Cabal Pit would also be acceptable IMO.