You keep saying "we've known this for 6 months." Well, not everyone spends all their time in PTS.
The way they worded everything and the way it was presented in the developer talks absolutely made it sound like we were enhancing our base class, not just switching classes.
This is not an enhancement at all, it's strictly keeping the same visual toon you have already created, and applying another class to it. I guess if you aren't into alts but still wanted another class, this is for you, but that's an extremely niche group. What it really is is free stealth to all non-stealth classes. Most of my toons will literally have one item on their second class action bars: stealth. Then switch back to the class I made for that character from day one.