I think it is more the parents of the young players, who know who Sanders is, and see a direct connection to NFL agents/money.
Hiring a legend as a HC in the NFL... the last legend I remember hired as HC was Mike Singletary, the leader of the 1985 Bears defense, 1st ballot HoF LB. He even had 6-7 years of coaching experience in the NFL. And we know what a disaster that was: "cannot play with them, cannot win with them, cannot coach with them... can't do it".
In any case, it's a free country. If Jones wants to hire Sanders as HC, he's free to do so. If it works, more power to him. If it fails, I'll laugh with everyone else.