Not a huge loss for the WWE on any front, though it's definitely surprising. Chavo has been loyal to WWE, he's always done whatever has been asked of him so one has to wonder exactly what it was that ultimately broke the proverbial camel's back.
I see a lot of "he'll get treated right in TNA" comments and it makes me wonder why someone would make such an automatic assumption. After all, Tommy Dreamer wasn't used any better in TNA than he was in WWE. In truth, Dreamer played the same role in TNA as he did in WWE: jobbing out to other talent while continuing to ride the coat tails of the ECW legacy. Matt Hardy isn't exactly setting the world on fire himself in TNA. His role has been exactly the same: come out, work a match, mostly job out with a win every so often while riding the coat tails of his brother Jeff. He did the same thing in WWE that he's been doing in TNA. The only difference is that Matt Hardy hasn't made his internet rants against TNA as he did against WWE.
Like those other two I mentioned, Chavo Guerrero is someone that probably made a good amount of money working in WWE. He's probably secure financially so I won't be at all surprised to see him rant and rave about WWE. After all, becoming wealthy in WWE before bashing them after leaving and/or being released is the usual trend here.
Maybe Chavo's career didn't ultimately turn out the way he'd hoped. For a lot of guys, that's how it's gonna turn out. Not everybody is going to be a main eventer. Truth is, not everybody deserves to be a main eventer. Chavo is someone that can be depended on to put out good matches but c'mon people, let's not pretend that Chavo was pegged to be a main eventer at any point in his career here in the states.