This type of issue is usually best dealt with privately.
T.A. makes great knives. Like any business, some customers will be unhappy even if the knife is great. It is a risk of the business to navigate sales and service issues with many customers.
However, by dealing with a private sales and service issue publicly, the business bears a greater risk - the potential to alienate other customers.
Small businesses may take a cue from larger ones here. I would not expect Spyderco, Benchmade, GEC, Case, CRK, or other established knifemakers to risk the bad PR over a single knife loss, regardless of the circumstances in which the loss occurred.
The damage to T.A.'s business and Rick's business from this thread likely exceeds the knives and the work.
The company always has to take the high road. If the high road is simply unbearable, there is legal recourse that can be explored. Almost always, companies and sellers come out of public debates looking unprofessional.
If the buyer and the seller are satisfied, perhaps it would be a boon to both to remove this thread entirely.