Yes, for a completely unrelated reason. There have been filling deadlines for candidates at basically every level of government for a very long time and those have never been successfully challenged in court. And even with the most liberal Judges on the SCOTUS likely wouldn’t bat an eye at them. The problem here isn’t Alabama (for once) it’s the DNC being so high on it’s own shit that they assumed the laws wouldn’t be applied to them. Sure, the State Legislature could pass a law temporarily waiving that requirement. It seems awful stupid to bet on it when the convention could happen a week earlier and avoid the whole thing.