I am talking mostly about Cademimu and Mando Raiders here, as they have bosses that can be easily abused.
I Cademimu both the Wookie and the bonus boss can be outmaneuvered and if you position yourself correctly their main mechanics (adds and aoe pull) will be neglected. In Mando Raiders the bonus boss can be made completely helpless by correct positioning.
I do really feel that this is exploiting the game mechanics and I don't like it. Although I do know what could be done to make these fights a cheesy cakewalk, I will not tell the group, but most of the people know anyway at this point and will insist to abuse/exploit.
What's your stance to it? Will you propose these exploits yourself to make the run go quicker? Will you just follow the group? Or will you insist to do the fights the "right" way?
Clever use of your surroundings and the weaknesses of your adversary(s) have been staples of RPGs since the genre came into being. One of the most engaging and fun aspects of tabletop RPGs is for players to come up with solutions to encounters that the Game Master (GM) did not anticipate. And a good GM rewards the players for their cleverness, but also learns from the experience.
These so called "abuses" of boss mechanics in MMOs are no different. The developers are the GMs - they have created an encounter that the players need to overcome. Somewhere along the line a group of players, whether by accident or on purpose, use their surroundings or "exploit" a weakness making the encounter easier than the developers intended. And then that "strategy" is propagated to all who play the game. The "reward" is that those who use it save time.