You have to pick these three modal seperately, if you do so, you will waste 1/3 of your abilities.
I'm totally fine with a heavy armored front line support character / tank. What I've heard, not experienced, is that they are underpowered in a support role and must be rather narrowly focused in what the buff, accuracy or defense, nobody picks the charge. I could be wrong but there big claim to fame is there modals but you half to select each one at 3 different lvls. If all were automatically available and then you could pick between the other active abilities and weapon/defensive/utility talents that would help IMO. If I'm wrong and you do get all 3 automatically I take it all back because then you could at least strengthen one through talents and have the ability to situationally switch between then making them more interesting.
Yeah so that seems like a waste. Changing that alone would make them feel just right imo.