lol you can whine all you like. i play on controller too. its not that hard. "track who is healing" every player roll is clearly indicated. you can focus target people. you can use in-game macro to target your focus to quickly get back to them. hell, you could set up a macro to LB your focus target, so you dont even need to target them first. the tools are there.

as for viper. it's problematic in FL but, if people would get off ranged and start fighting melee with melee. monk gets 50% damage reduction in FL. earth's reply for quick healing. you can wind's reply vipers (and dancers. and dark knights) who are running in. you can LB them to disrupt. its not impossible