Sad - remarkable is the key word - and here is a sad response:
"I would like to point out that pastoral letters and encyclicals tend to be ignored by many (if not most) people. I think that's at least partly because their authors don't put themselves and their values at sufficient risk to challenge the status quo."

This is a pastoral for the diocese of El Paso, first and foremost.
Second - Mark will be able to leverage this within the catholic Texas bishops group that meets regularly - thus, bishops from Laredo, Brownsville, San Angelo can also leverage.
Third, all TX bishops have the TX Senate Bill 4 fears and are struggling to organize and articulate to their parishes.
Fourth - pastoral letters such as Mark's will NOT be ignored in El Paso or some of Texas and is already getting national attention - think McElroy in San Diego.  The cynicism expressed by one commenter is depressing and reveals little understanding of what is happening in Texas, New Mexico, Arizona, California.