I see. So basically something like this.
I'm considering this as well. Maybe even considering keeping them permanently epoxied in there. I have side skirts to help hide them a bit.
This is a good idea whenever you have a flat or have to go to a tire shop. Those guys rarely have a jack pad. And even if they do, they're too lazy to use them unless you push them to. I always keep a jack pad, wheel hangers and torque wrench in the trunk. They're usually looking for the quickest way to get things done so it's on to the next one. Most of them think the plastic shrouds at the jacking points are rubber and can support the weight of they car. If they crush them they can care less, it's under your car and they will assume you'll never notice. Only the dealer jacks up the car correctly without you having to tell them. So addressing this jack point issue is good thing for everyone to consider.