The necessity of studying one's own language is the problem. Most of what is read in English should have been read before college begins. And what's left? There is no language to master as there is with a French or Classics major, save some specialty work in old/middle English. The interesting linguistics are covered by that field. Education majors cover the pedagogical aspects just fine. So, the only thing that can be left is remedial reading or inventing new fields of study, and the invented fields aren't rewarding ends or means financially or intellectually.