Reason for REPL in Atom being classified as immature?

[lierdakil]

Hi, the guy behind Haskell support in Atom here. I just wondered what are criteria for judging REPL here? To be clear, never in my life used EMACs, so can't compare, but REPL in Atom seems to work pretty well nowadays.

[rainbyte]

I have to test this again. At that time something was broken.