No, we can definitely rate many aspects of the cards the UFC is assembling before the card happens. There are several metrics that show a decline over the years as they try to fill more and more time slots. You might like this, but most of us do not. We can no longer pretend that the average UFC card is much higher than RIZIN, PFL, KSW, Oktagon, etc. in terms of excitement because you can usually count on fighters to fight with heart and save even the shittiest of cards from any organization (something the fighters are rarely rewarded for adequately, another thing to criticize the UFC for). The UFC no longer regularly delivers the elite skillsets and/or superstars that nobody else can.
This is the result of the UFC's business decisions over the past many years. If you don't like people criticizing them, it's time for you to take it up with the UFC.