Unity is one thing, but personally, I like having T11 along with E. Certainly Unity is an important issue, but if unity was so great, why is there a law against monopoly? I think more competition will start develope the magic towards positive direction, something that looks more impossible, looks more inconceivable, and frankly, if only one magic company was releasing lecture DVDs, I personally don't think that will happen.
Also, competition doesn't always mean un-united (not a word, I presume but you understand I also presume that), one can have competition with friends and that does not mean they are not united as friend, that just mean competition exists between friends.
This may have something to do with money, but let's be a little bit trusting here, they said they want to improve the magic as an art, and if they do so, people will stay at T11, and if it was all bogus, people will probably leave, only time will tell.
To throw my personal opinion, I think they are doing a good job so far, and hopefully this will continue.