PvP is templated, so players are less burdened with grinding gear and skill and strategy can be a more determining factor in the outcome of matches.
The same holds for competitive M+, even though at the moment only in the MDI.
Has the time come for high-end competitive raiding, the 'Mythic race', to become template based as well? It would solve the grinding problem, and have fairly little impact on the overall player-base.