I disagree.
You're talking about him being older and wanting to look after his health, not take any unnecessary damage, ect. THEN WHY TAKE THE FIGHT TO START WITH.
Fans paid to see him go to war and fight until the end like his brother does and he used to do that everyone expects
Verbally quitting (while still completely conscious) from and a minor knock down (which he's had many times in previous fights) isn't just tarnishing what got them their names and paychecks, but robbing paying fans of what they wanted to see.
"I didn't want to leak blood every where in front of you guys"
The fans are used to Diaz brothers leaking blood everywhere on the canvas. It's that mentality to never quit and paint the canvas red while doing so that got him his million dollar pay cheques, and he took this pay cheque to fight Lawler.
I'm not disappointed that he's conscious of his health now, just that he made that decision after taking a fight.
It's perfectly fine to quit taking punches and avoid unnecessary punishment, just don't take a fight in the cage where that stuff is going to happen. I have no interest in ever seeing Nick fight again and you'd be niaeve to think their brand didn't take a hit after Nick quitting like that.