It's still a sound strategy.
It was overblown by some as the best combination in 2.0. It was certainly a good strategy and probably the easiest to recruit for but I think the good, well balanced teams beast the good spd/ath/def teams more often than not.
A new advantage for those teams is the playing time preference. If it comes down to battles, the FB/FCP teams should have no problem promising minutes since every one plays.