I would not call it damage.
The side panel of the platform is not glued in… its literally just pressed into place.
there is a gasket there to ensure it doesn’t allow resin to seep into the hollow interior.
When I got my printer the side panel was not fully seated at one end… I simply pressed it back in and never had a problem with it… but the gasket IS rubber and both rubber and certain plastics will swell when soaked in just about any solvent.
Silicone rubbers can swell to 3 or four times their original dimensions when soaked in mineral spirits, for example.
While I can see some folks might like the idea of putting the whole platform into the formwash… because it cleans the platform off, too… It seems to me that the amount of resin still on the platform would simply saturate your IPA three times faster… and cost you more in replacing the IPA than it saves in the time it takes to clean the platform with a scraper and paper towel.