3 of my 4 plastic wheel well liners are missing.

I heard a loud sound while driving my 2004 Prius, and my rear right plastic wheel well liner was on the road behind me, shredded and unusable. I did an inspection, and noticed the there was only one wheel well liner (right front) left on my vehicle; the others had all apparently come off in a similar fashion. I suspect this is related to having attached a hitch-mount bicycle rack to the car which I leave on permanently. It which does make the car ride a little bit lower, hitting speed bumps a bit more.

Since I will only hold on to this vehicle for another few years, until global supply chain issues ease and maybe a new Prius plugin comes out, I'm thinking it's OK to just let this be. I live in Austin, TX where salt is only used on the roads a few days of the year if that. I don't see any signs of corrosion.

It does seem like the front and rear bumpers feel a bit more loose without that structure, but nowhere near dangerously so.

I replaced the struts March 2015 and the suspension still feels decently firm for this car.

Just curious if anyone sees any serious issues I'm missing with letting the wheel well liners go, other than road noise. I think I'll just ask about it the next time I get a regular dealer multipoint inspection.