Masteria Revamp 2019 - The Dead Horse Beatening / Grave Pissening

The trees work like Krexel now, where their "faces" are separate mobs that spawn onto trees in the background;

Isn't that how they always were? The tree mobs spawned onto trees in the background, so you couldn't easily tell which tree was harmless and which would attack if you came too close.
Only difference is that they were an entire tree rather than just a face.
(Does this mean the hitbox for the new trees is just their face, then?)