Yeah I was mad about crit too till I saw the new damage boost tied in now. It's still a good stat but it works very differently. Oh and this is where I found a lot of the newer info. All credits to dervy and friends. He has the new SS gcd reduction values and SS dot damage info too. I had to pull the det from his overall damage formula, and it's for drg so det might not be 100% accurate for other jobs.
https://dervyxiv.wordpress.com/