It was pretty obvious they were going to need to raise the caps....although some people were jumping off of ledges over this. But the changes doesn't necessarily indicate that the caps had anything to do with players stacking comms for the 2.0 conversion. More likely, they didn't anticipate how fast players can rack up commendations when they play 15-20 hours per day. Just like their estimates for how long it will take players to burn through new content, they continually underestimate the amount of time some people will actually spend every playing the game every day.
Well, I got my tin foil hat on pretty tight for this.
Kind of wish they would raise the warzone commendation caps too.