They have. And when they did it they announced they were doing it and gave everyone plenty of warning when it was happening. And while it's not as significant as what they took away, they added other ways to earn it and beefed up the earnings in areas where it wasn't much before. If they were doing it again, it would be reflected in this announcement and it's not something they would just do without making it known.
Since it is not in this announcement, we can assume that has zero to do with the topic at hand and what has been announced, SFV will be free-to-play from Dec. 11-18.
They were already doing this with red bull now its just the cpt logo instead. Is it a bad thing if people hear about the pro tour and start watching tournament? I mean its not like its an add for fast food or something like that. Again they were already doing this with the red bull costume and red bull ads on the cpt stage.
I don't really have a problem with them promoting their tournament. They could probably go further with the idea, like allowing people to watch live matches in-game using some sort of spectator system or having tournament replays available for download. Stuff like Red Bull ads in loading screens and stages is pretty sketch, good thing you can turn them off.