1) They said that psychic phase happens at the same time. Between movement and shooting.
Wait, where did they say this? Not in that article, surely.
2) Master levels only dictate how many spells you can cast/ dispel a turn.
Well, first off: how can you be sure that's all they do?
Second, assuming you're right:
Booooo. Boo, I say. Well, unless you can try to cast the same power multiple times.
Who in hell is going to bother with a hard-to-cast spell, then (an 8+, say)? You'll never get it to go off reliably, not without some kind of buff. Granted, maybe all these powers will be easier to cast than that, but given that the bottom end is a 5...
IF they don't get a buff, hopefully the difficulties do not stretch too high. Say 5s for the equivalent of WC1 powers, 6 for WC2, 7 for WC3 or something.
Of course, there's only so much we can extrapolate right now, and it's reasonable to expect the psychic phase to get a bit of a nerf, but if I can't get powers (all of them) to work at greater than 50% odds, I'm not that enthused of making an army full of psykers (i.e. two of my standing armies).