Yes, no, maybe
First of all, the complaint is that you can't get much above 65 steals no matter what. Well, ok... I managed to do it, but I loaded players up to hit over .400, gave them A-A running stealing ratings, and gave them 10+ rating in drawing walks... then I got about 80.
I do not, however, think the Era settings are the place to do this - mainly becasue it would upset the balance of the pitcher-batter confrontation AND it would effect "everyone".
All that is needed (I think) to fix this to everyone's satisfaction is to allow the player's "steal rating" to be greater than "10"... allow it to be 12, 14, 16, whatever to give the "once in a decade" player who can accumulate maybe 100 steals.