Well, yes, I hope he does run a fair bit less from now on.
But, I think the fact that he was let loose in this game served more than one purpose.
It helped beat the Rams, both in terms of effectiveness and keeping the D guessing.
But just as importantly it (re)presents the threat of him as a runner going forward. It shows Dorsey isn't protecting Allen, he's letting him loose. It will keep the rest of the league guessing, without him having to run as often, hopefully.
Or you know, he'll run anyway because he's Josh.