It’s a fair point that I generally agree with, but in this case I just don’t see that build happening; there’s (as far as I know) no gear supporting acid BWC. Most epic sets are very narrow in scope (support a distinct build), which I feel is also true with Daega’s Oath: DEE + retaliation Sentinel. I guess my issue depends on whether the 3p 50% conversion is there instead of something else, or if it’s just a freebie for people who want to make a gimmicky build.
It’s by no means a big issue, and I wouldn’t mind seeing it staying the way it is, but it just looks awkward to me that a set that so strongly proposes the use of a skill (+8 is big) also has a 3p bonus that is wasted due to said skill bonus. It just looks plain weird. 