It isn't your place to give out the name of the person disparaging the VA's, just the stuff they're saying? So you can name Veronica and Rachel freely, just not the VA telling tales. Convenient.
It's not cool on your part or that VA's part to go telling stories out of school. It's pretty unprofessional of that VA to talk about anyone in the original cast with any kind of negativity, given that they took over their jobs. They really should just take the job and well, shut up.
Certain VA's appearing in the show doesn't explain anything about the contract. It could just be actors accepting work, and PUSA offering it to make it look valid. That's as reasonable a speculation as any other. And that's what it is--speculation.
Bottom line--you may know someone, but that doesn't give you an insider's access to anything. Just hearsay meant to discredit someone else. Frankly, the news that this new VA is saying stuff like this makes me dislike the new cast more than I already do.