Americana and the Rock Hall

Another genre the Rock Hall will one day have to address is Americana.  Reaching its peak in the last decade, it really took off in the early 90's when Lucinda Williams, Uncle Tupelo, Jayhawks and Steve Earle, to name some, brought the format out of the woods and into Radio formats and Modern Country music covers.
The biggest names of the bunch are Lucinda Williams and Steve Earle.  I'm surprised that the NomCom hasn't given Earle a deeper look.  He's been pretty great since his Guitar Town debut in 1986, he's a critic fave and an artist fave.  Outside of Lucinda, he's the most famous of the genre.

We now know that Lucinda got a look by the NomCom's, and I'd have no problem with her.  Much the same as Earle she's a favorite of many.
But I really wonder why Emmylou Harris hasn't gotten a closer look.  She was Americana before Lucinda.  Oh well, at least she's in the Country Hall.