I'm wondering how long the pad holds up since it is the only thing stopping the crud from being spewed back into the system. Looks like they didn't fix the design flaw, they just plugged it with a 20 micron maxi-pad.
They also said 20 micron was to low for filtration and Copeland had required that level of filtration to make them look bad.
They caught the crud but then burped it up when the pressure backed off the core. I'd say that excuse doesn't hold up either.
At least after all the excuses they did do something. Time will tell if it works.
I haven't seen this result but I can imagine if someone installed the dryer in the wrong location, eventually it'll work it's way out to the dryer. I've seen it more than once that a tech has taken out the "dryer muffler" and install a new dryer. I suppose under certain surcomstances, the beads could sit in the condenser and at some point move through. I'd look for signs that the discharge line doesn't look original.