All of this is moot however if CBS-D can't at least supervise the effects work from this other effects house.
CBS deciding to outsource to yet another effects house is simply throwing HTV under the bus. CBS is not acknowledging that their decision to outsource was a bad idea, just that HTV sucked. They need to drop the accelerated release schedule and let CBS-D do their thing 100%.
Well regardless, it appears that they're at least AWARE of the problem. Which is the important thing.
Otherwise they would have just kept using HTV.