Hit timers are a controversy. I see hit timers as a good feature to allow guns with longer freeze rates to win in spar. Such as Taurus, Facebook gun, etc. It gives them a chance to win. It's also useful for countering rushers. Ever faced those bar rushers who run and shoot directly at you? It makes sparring more interesting with the hit timer. Players need to think twice before tanking in bullets for the sake of holding the bottom area.
Then again, hit timers have a serious issue with laggers. If the enemy has a hit delay, it's going to be a huge problem. Now resulting a much more unfair match up and gameplay.