Both. Coordination is so difficult, we have no good voting mechanism aside from "core merged the pr" (terrible), hashrate, and UASF (unpredictable, dangerous). And also nobody wants to "try something ...
yeah, coordination is hard because the stakes are high. miners as peg-out arbiters is a heavy trade-off. ossification isn't stagnation; it's predictability. i'd rather see features built on l2.
1