all the teeth gnashing and hand wringing
if that was the case they would have grabbed Mike Bennett, ReDragon, and a couple others
They are booking shows in the same arenas and in the same markets as ROH shows. They are asking arenas not to book ROH any longer in exchange for WWE running shows in those same arenas.
In the last two years, they have signed:
AJ Styles (ROH/NJPW)
Samoa Joe (ROH)
Shinsuke Nakamura (NJPW)
Rocky Romero (ROH/NJPW)
Tama Tonga (NJPW)
Karl Anderson (NJPW)
Doc Gallows (NJPW)
Kevin Steen (PWG/ROH)
Kenta Kobayashi (NOAH/ROH)
Prince Devitt (NJPW)
El Generico (ROH/PWG/DG/Evolve)
Uhaa Nation (Dragon Gate)
Not to mention the guys they already released or guys they signed 2011-2012 like Sami Callihan, PAC, Jon Moxley, Brodie Lee, Ryan Drago, Claudio Castognoli, Octagon Jr, and former WWE guys they recently brough back from LU/TNA/ROH like Rhino, El Patron, Dreamer, the Dudleys, Sting, etc.
They're hoarding as much talent as they can to get people to subscribe to the Network, and so they can run more tours in 2016. They are aggressively signing talent away from all the notable indies and major Japanese/Mexican promotions.
The are viewing NJPW and ROH as a (minor) threat for the first time in a long time. ROH is running more shows and drawing more fans than they ever have before, and NJPW World is a direct competitor to WWE Network.
Who was the last real star that WWE developed internally? Randy Orton and Dave Batista? All the rest of the new stars since then (Punk, Danielson, Black, Moxley) came from the indies or Japan.
Again, I'm not saying this makes WWE the bad guy. But they're clearly attacking the major indies and international promotions now that TNA is basically irrelevant.
EDIT: and they have reportedly been interested in The Young Bucks, Moose, Jay Lethal, reDragon, the Briscoes, etc in the last few years for NXT.