Size matters.
Also as far as the best TD artists that Aldo would have faced, Khabib's striking would be behind Frankie and Chad I believe. That affects how well the TDs can be set up.
When did Frankie and Chad take Aldo down?Yep.
Frankie and Chad both were able to get Aldo down after a while, and they are smaller than him.
1st Edgar and 2nd Mendes but barely both times IIRCWhen did Frankie and Chad take Aldo down?