I think ppl will do the old 3 Primals even more with a token system in place. Just seems ridiculous to do over 100 runs and still not get 1. This leave players who didn't get the mount defeated and while the one that won is unmotivated to continue. Also it is really difficult to get ppl to do Old Content to begin with. Hell look at the New Odin Fight. It was popular for about 2 weeks now no one is doing it so good luck ever getting any. A token system for the old 4 Primal Mounts would get players interested in doing the Old 3 Primals Again.