FFG care about their tournament scene but they aren't going to delay things for their overwhelming majority of non-tournament players to make a slight improvement (and even that's subjective) for the minority.
I disagree greatly. As I said - it's exactly the same with every other game with reasonable management. Look at this - people already are waiting for raider, waiting a month longer won't change much while it could irresponsibly shake the official tournament scene at it's foundations.
Why bother catering to competitive player base if you would not care about them enough to provide them proper, stabilized tournament season? Also don't look at it like it's delaying - think it's just scheduled to release after those just for that reason. That's extremely logical and perfectly understandable in my opinion, especially when, again, you look at every single other game that matters on the market and see that they would never do such stupid things as releasing expansions in the middle of tournament season.