Yes because having a macro that targets my focus target instead of my target to do an interrupt when ever the addon tells me too is not easier than having to pay attention to the boss and switch targets interrupt and switch back. Yes DBM and macros can make teh game easier.
It also means bioware can get more creative with the actual encounters, and ask for more from the players.
I find it strange people want SWOTOR players to be dumbed down, limited in what they can do, and 'boxed' into one role, purely because we don't have the 'tools' to play to our maximum potential.
Most of WoW's fights wouldn't need DBM if they gave emotes and telltales signs like this game does. I find boss fight more fun in this game than I ever did in WoW because there is no DBM telling me what to do and when to do something.