I'm sure you probably don't know the answer to this, so I'm really just asking the question quasi-rhetorically, but why would they release a tuner making only one gameplay change.
As someone with no knowledge of how this process works, it would seem logical to me that they would make this change to the LB's, that they would make some other gameplay tweaks as well.
Unless they're finally changing their M.O. in terms of how often they release tuners, then I would think that they would want to put more into this one.
Skillz is quite perceptive about gameplay and A.I. changes, so I'm going to take a chance and download this tuner and see if their have been other improvements. I can always delete it again if need be.