This just after he claims in Battlegrounds lobby that "Trees were not nerfed because people using them lose more often than they win"
People do have to play things to find out why they are good/bad. Also, Gedden is generally the one that makes the balance changes.
Gedden played trees and managed to play the most inefficient tree bg you could ever come up with. I'll just leave that here
An individual can enjoy a theme without it notably impacting his bias on them. For example I'm a Stalwart KF player and I've pushed for several nerfs across many themes within the faction.
Are there even faction zealots anymore? Seems to me that has moved down to the theme level mostly. Though they get together when non champ runes are being threatened.