I think it's important to take notice that Twitch's recent problems (the buffering problem, chat problems, the delay in general) are problems with their ability to cater to the big tournaments which causes me to really not be all that surprised if this turns out to be true.
The ways they've handled the tournaments have really disillusioned many streamers. I don't know if there's any better way for them to have dealt with the scaling problems they faced as I can only imagine the work that must go into supporting a live stream, with real time chat, that has 100k+ viewers (and for some of the bigger tournaments that's a small number). Something like a 30s+ delay in the stream makes it very difficult to have real interactions between the streamer and the viewers which is particularly bad for smaller streams. For the big guys it doesn't matter as much since their interaction is less back-and-forth and more broadcaster in style and there's absolutely no interaction with the tournaments.
The point is that if this is true it really doesn't surprise me at all. And whether or not it is I think there's definitely an opening for some serious competition to Twitch by making a service that is essentially an exact copy but from a business focus standpoint caters more towards the small-to-medium sized streamer and their audience.