No it wasn’t.
Templates ruined PvP. They took away nuance in building interesting gear sets for specific specs. PvE still stomped PvP gear because of the 1% per 10 illvl difference.
It mostly made gear pointless as well. In a game where gear is part of the reward and effort, removing that removes incentive.
The biggest issue, at least for me, was the difference in haste made PvP feel… off. Stepping into arena was a completely difference experience compared to raiding or M+.