Part of good TDD are fast reflexes and good mobility, which decline with age and wear. Many fighters had good TDD in their primes but it declined later. Rampage is the most obvious example, though some of his decline comes from lack of training and conditioning. But it's also true of Overeem, Machida, Penn and many others who once had good TDD.
I'd pick 2009 JDS over Blaydes based on his TDD, speed, striking and chin when he was younger. I pick Blaydes over 2020 JDS.
As for JDS getting a submission, his last submission victory was in 2006 against some unknown guy. The odds of him submitting a big, competent wrestler now are very, very slim.