There is some truth to this. I washed the windshield really well (no clay bar) AND the wiper blades and now they are working fine. Time will tell how long this lasts but so far so good. Interesting.Clean your windshield by hand really well. Like I'm talking with a microfiber towel and glass cleaner. Twice. Then go over the entire windshield with a clay bar while lubing it with your glass cleaner.
Then put on a good coating of RainX with the wipers flipped up (RainX when wet may be bad for the rubber of your wiper blades).
At this point, even old wiper blades will glide over the windshield.