Courses on historical methodology are not worth the time that they take up. I shall never give one myself, and I have observed that many of my colleagues who do give such courses refrain from exemplifying their methods by writing anything.
I don't think American poetry has gotten any better in the past 35 years. Oddly enough, creative writing programs seem to have been good for fiction, and I would not have predicted that.
The Language Poets are writing only about language itself. The Ashbery poets are writing only about poetry itself. That seems to me a kind of dead end.