Derby's situation was actually different though, and for a number of reasons.
The main reason is that Derby were in an Agreed Decision with the EFL, which explicitly forbade any signings, so they had no recourse to appeal to the EFL for dispensation.
That is reason enough why Derby couldn't sign anyone, but in any case they always had enough players that met the status of ‘permitted player’, so even without the Agreed Decision, they probably wouldn't have been given dispensation (except an emergency keeper, presumably).
We're not in an Agreed Decision though, and furthermore, it seems we've been able to successfully argue that we lacked enough players that meet the ‘permitted player’ criteria; although the upcoming AFCON was probably the clincher here.
Going forward though, I do expect the restrictions to be lifted, as they usually are once new owners are in place and the EFL are satisfied. So there's not likely that much for us to fret over here.
As for the points reductions that the petition linked to in the OP is also wanting to see overturned, I really don't think that is ever going to happen; certainly not now it's already been done, so that would seem quite futile to me anyway.