I sure don't know how I missed that thread back in May, but that car was in Arizona, so I guess it's a problem even in the "DRY" climates.
It only took me about 15 minutes per door to pull the seal, dry it off, and apply the silicone spray, so I guess that's going to be a periodical "detailing" routine from now on. I just hope it doesn't loosen up my seal so that it starts to come out on its own.
Oh well, no car is perfect.