Right, but the point is not that it is possible, it is that there are other, more important issues here. Let's say we regulate the utilities so that residential customers will not be impacted by industrial users (or by DC operators specifically). The result would be higher utility bills for those industrial users, which would encourage the use of things like turbine generators -- which I would say is a negative outcome we should avoid.
It needs to be carefully thought out (Congress does not have the best record on this -- see e.g. the ban on onion futures). As I suggested elsewhere, a better idea would be to require DCs to pay the local community in proportion to the electricity consumed by the DC, and an even larger payment to the local community if the DC does not get its power from the grid (to discourage less efficient/more polluting power generation). Yes, rates would be higher, but people would be compensated with cash and it would be a big incentive for industrial users to be more energy efficient and a small nudge for residential users.