Why is wax paper wrong?If you have to ask, etc...
Somewhat more seriously, I think an aspect of California food is that it's highly regional and it ends up being a bit of a fool's errand expecting it to be replicated precisely out-of-region.
It's bizarre you can't get a structurally integral burrito south of San Jose, never mind Weehawken, and I'm equally bewildered, as an adoptive Northern Californian, that foil could possibly be such a point of contention.
The only possible advantage to foil is that if you don't eat it all it's marginally easier to take home.
I can only assume that San Diegans take their burritos home far too sober. Surely that can't be true. We have to get to the bottom of this.