Sylph.Tigerwoods said:
Because you can't cap haste w/o losing set bonus on af3+2 and gimping the ***out of your kick attacks.
Edit:
You also forget the part where the 2% DA is devalued as fk from not only TA (18% w/ epona's and atma of apoc, and TA has priority over DA, so that's 18% of the time you won't even have an opportunity to DA), but also by your other DA gear.
Eh, I've not heard much about MNKs AF Set bonus (well, aside from "it doesn't proc enough omg!!!"), I assumed it would've been a ~10% activation rate like other AF's I've heard/read about (~1-2% per piece?).
I'll gladly admit that I didn't do all that much research into MNK (a mix between not caring for the job personally and not having it levelled), so I was just going off what I'd heard/read in-game and online.
While the 2% DA is probably more equivalent to 1% DA inside Abyssea, a bonus would've still been a bonus.
Semi-related question: From what I've heard, no single +2 piece "makes or breaks" their jobs set bonuses, is MNK's really that good the foot slot can't be replaced?