I don't make the rules - the CAA used to, but fortunately the BGA had a realistic attitude towards airworthiness, and an extremely high safety record.
Now EASA make the rules, and whatever we may think of them they are the law. Changes to an aircraft that do not comply with their rules invalidate the insurance, and no doubt you would then castigate gliders for flying uninsured...........
I do not have to make any excuses for complying with the rules (however stupid I may consider them to be).