Unfourtinately 14 was just before my time. I can't argue that giving free range will still turn to meta builds, but I will say that in NBA 2K there are LOTS of videos and guides on meta builds and many of them are different. What I believe they've done is balanced the attributes, at least better than NHL. Speed is absolutely THE most important stat in this game. If they are able to find a value for speed in relation to every other attribute to the point some people choose NOT to max speed, we could see a lot of diff builds (again, I could be wrong)
X factors being gone would likely be best for the game. This is also something I don't think they will get rid of though, so I just try to discuss how to improve the system. If they must exist I wish they only effected things that attributes can't, a specific move, a specific shot, etc. They need to have smaller impacts and less arcade-like mechanics.