I would have to assume Tammy Blanchard and Christian Borle are being paid fairly well to have stuck with it this long—six months pre-pandemic and coming up on a year since it re-opened. Tammy is a two-time Tony nominee with a steady film/TV career and Christian is one of the most in-demand Broadway talents with two Tony wins. It seems like they could snag other work easily, so something must be keeping them in the production.