I think what he's saying is that adopting legitimate, traditional, and orthodox customs of the Latin Rite is vigorously opposed, but adopting dumb, recently-invented, and banal "customs" doesn't meet nearly as much opposition.
My only Eastern Catholic experience that might tend to confirm that was when I heard Divine Liturgy from a young Ukrainian priest who couldn't seem to use the word "father" -- "our ancestor among the saints, John Chrysostom" and the like. I felt like giving him a good dressing-down, but he being a priest and me being a Latin Rite visitor, I let it slide.
Don't worry, dear Campion, on the selfsame issue I've stomped on a young Ukrainian Greek-Catholic priest so hard I'm sure it must have been for the both of us.