What are you talking about? The layover info in Google Flights is right there in the right-hand column of the results list, "1h 48m in IAD".
I don't see how it could appear any sooner unless it telepathically, I mean, machine-learningally knew your destination and dates before you entered them.
Hm, yes in the case where there's only one layover it does say where and for how long. It doesn't show you that detail for 2+ layovers, and it doesn't show you what the length of the legs are or the local arrival/depature times on the comparison screen.
It takes one click to unroll the flight details which show the layovers and arrival-departure times. The fact that hipmunk doesn't have a monthly calendar with prices makes it significantly worse than google flights for me.
Not to mention a few other missing features, such as google's explore nearby destinations map, which is very handy.
I don't see how it could appear any sooner unless it telepathically, I mean, machine-learningally knew your destination and dates before you entered them.