On all the times that I have eaten in TK and its a lot,I have never had tough meat or a poor dish.
I like the chicken for two,the Aubergine Parmigiana and the steaks.
I have steak tartar when they have it on as a special starter and have had numerous off the menu dishes prepared by Michael Sandoval who works for Thomas Keller.
I agree that you should always be able to get a table when you walk in the MDR.
Funny times we are in with hospitality.
I have had a few poor meals on land and seen staff shortages.
Better luck on your Encore trip