The zyra buffs completely miss her issues.

I mean don't get me wrong,these aren't small buffs,and I'm sure those who actually bother playing her appreciate them,also her winrate will probably jump to 54%-55%,but they completely fail to address her actual problems.

If I were to rate zyra's problems(not weaknesses),focusing on support(as her winrate is high there sigh):

1. She can't lane against competent opponents,poke/sustain supports outtrade her,competent tanks who understand how squishy she is just walk all over her,and there is really nothing she can do if they start roaming,you don't feel outplayed when losing to these guys(though this is more prevalent in higher elos),you feel like you couldn't do shit,and I would say this is the biggest factor behind her low pickrate(as lower elos can still see this,just not as clearly).
2. She is very ineffective against mobility,and assassins,now before you tell me they are supposed to be her weakness,zyra is supposed to be a counter-engage champion,assassins should beat her by out rotating her and forcing skirmishes,that's both true and fair,they however should not beat her by jumping at her/her team and ignoring her abilities with their mobility,that's both unfair and nonsensical,and is another big factor for why people don't play her.
3. People refuse to understand there are more to strength than winrates,and that everyone is aware of them already,stop constantly bringing them up,we already know what they are.

To be clear I'm not saying we should remove her weaknesses,her intended(as a zone control mage/support/whatever) weaknesses should be to:

1. Poke comps: zyra is counter-engage oriented,they don't seek to engage,and they do counter her well right now.
2. Split push/roam/skirmishes/pick offs-zyra rotates slowly and has heavy aoe,she doesn't want small fights,to be split or caught off.

The current changes don't even try to deal with these issues,they instead buff her aoe delayed knockup,which is going to be good at low elos and much less relevant in higher elos/competitive play,so what will likely happen is:

1. Winrate will probably jump to 54%-55%.
2. Will still be seen as a shit pick in competitive/high elos,so her pickrate will only increase slightly,and lower elos won't play her because pros don't play her.

Finally,I will end with this note: If you want zyra to be counter-engage oriented,she's going to need to be able to threaten high mobility divers,she doesn't do that.

P.S: Oh I almost forgot,spellthiefs line is kinda shit,is tied to a notable extent with her laning,but there's more to her laning being bad than that.