As cbear mentioned,it is easy to over season ribs.
There is not much meat mass.
They may also start to cure,with all that salt and resting time in the refigerator.
Some folks think it turns them "hammy".
I often season ribs,an hour or so,before they go on the pit.
Briskets and butts,at night and then again on the way to the pit.
Unless your rub is totally out of balance,it is difficult to over season a butt or packer brisket,IMHO.
Yardbirds seem to like an even distribution,under the skin.
A couple hours may work.