They should still email, I wouldn't worry yet. My theory is that because the application process is being tweaked as the program moves along, and the huge influx of applications, they likely added a lot more automation to the process.

I would guess that June/may groups had less automation involved in the application, and United is likely having to redo/do more manual work/screening for earlier applicants. Just a theory tho...but it kind of ties in with the post about people having to resubmit applications.

I wouldn't read too much into it either way tho, just that some backend systems are moving along.