When FCOB came out of loot lockout, PF lit up with more groups, but still not TOO many.
Fast forward a few weeks when echo came out and then boom, PF was flooded with FCOB groups.
My point? People KNOW they will add echo, so they simply don't bother with the harder content till it is made easier, if SE stopped dumbing things down people might actually be forced to do the content while it is still challenging rather than waiting, and even better it may raise the average player skill level so we're not left with people who find basic communication in a story mode trial *cough*steps*cough* too hard.
If people can get by only knowing 1+1=2 then alot will just say why bother learning anything else, force them to think a little and you'll find they might actually engage their brain and enjoy the new challenge.
Or you can just nerf things 1 month after they came out, what the hell do I know.