You're changing the direction of the discussion. The comment I replied to was an explicit request for Stallman to comment on this announcement. Why would he?
It's great that you can use Qt under LGPLv3, but that was true yesterday, and that's not what this announcement is about.
> I am curious what Richard Stallman (or generally FSF) can say about this
What sort of comment are you looking for? Stallman has written about it before:
> In 1998, the management of TrollTech recognized that they could make Qt free software and continue charging for permission to embed it in proprietary software. I do not recall whether the suggestion came from me, but I certainly was happy to see the change[...]