...I am going to exchange my Marmot jacket for the same model to see if that improves the lining shredding issue.
Backcountry.com said I shouldn't bother exchanging the jacket because they now believe that I will just end up with the same problem (they believe that the substandard material was installed in all of the Marmot jackets except the GoreTex models).
Because of this they recommended that I look at one of the TNF jackets with similar features (i.e., a zip-in liner). Since I am also having durability issues with the TNF pants I bought at the beginning of the season (another story!) I am now leaning towards living with the Marmot for the rest of the season, sending it to them to for "analysis", and hoping that I get something with similar features but stouter construction in return.
But that's just what I'm thinking today!