Just my opinion on some flat statements...
Percentage wise, TC lets very few barrels with problems get out to the buying public, so excuse me if I put little faith in an assessment that they are junk. I've owned over 200 Contender/Encore barrels in 40 years as a serious Contender user (well over half of them TC factory barrels) - never had a bad barrel yet. Bet all the other MFG's wish they had such a good track record. And don't forget that TC's lifetime warranty is the best in the business. What is thought to be problematic barrel often turns out to be within factory specs, and the problem (if there really is one) is from another cause. These are production barrels, not custom barrels, but many of them still shoot nearly as well.
As for the after market barrel makers, they have been around almost from the start of the TC Contender. Those shops didn't start because TC makes bad barrels, but to offer cartridges/wildcats and configurations that TC didn't include in their factory barrel line up, for the option of premium barrel blanks for those who want them, and for custom instead of SAAMI chambers. TC obviously didn't think that was such a bad idea since they eventually added the Foxridge barrels to also offer more configurations and cartridges for a piece of the action.
Some of the custom barrel makers send out bad barrels out too, from poor workmanship or from bad blanks being used. And they are often less willing to stand behind their barrels as well as TC does. So I guess the barrel market is not a perfect world after all.
I doubt any of the models TC lost the tooling for in the plant fire will ever come back. Wasn't enough sales at the time to justify the high cost of retooling for them back then, and with the way the market has changed, potential sales would be even less now. Traditional muzzleloading firearms were being replaced by in-lines (really sad), and the TCR line was replaced by the Encore.