It's a couple of screw holes. If you can't manage redrilling to size to make it work then maybe this grill isn't for you and you can hand in your man card. It's a great grill none the less. After Covid quality has gone down for everything. Suck it up buttercup and bitch about something more worthy.
Just wipe the grates down with ammonia and place in a garbage bag with 2 cups of ammonia and seal over night. Pull out and rinse off in the morning, no scrubbing or power washer needed.
How does it ruin them? It makes fall off the bone rides exactly like the recipe says. I've never had a bad cook ever using it, my kids hate having to chew meat off the bone. I don't care either way as the flavor is the same.