ROS has had portability issues for a long time, but those issues have been getting a lot of attention for at least a couple of years. The build system is much better, for one thing. It should be acknowledged that a lot of people (hobbyists, mainly) have been putting in signficant effort on making an ARM port possible for some time, Raspian on the RasPi being the main target. So while it is a good thing, on balance, that Qualcomm is putting in some money to make it happen, I'm disappointed that the work already done on an ARM port isn't being recognized.
One interesting question that is always worth asking: Why is Qualcomm putting money in? And why are they putting money in now?
Anyway... it's finally nice to have some news for nerds.