If they decide to change the law, then it must apply to every wife of every King for ever after. The last thing a lot of UK taxpayers would want, IMO, is the constant law changing between monarchs. It is absolutely ridiculous to expect her to be anything other than Charles' and the UK's Queen.
The ONLY reason some cling to the idea of her not being the country's Queen, is this stupid, IMO, belief that she should be punished over Diana, if Diana couldn't be Queen, then Camilla shouldn't. That argument really seems to be worn, bearing in mind all that came out at the inquest and what we have heard in the last 11 years, IMO.