Moneytree, my guess would be that they were approaching (or on)...

Moneytree,
my guess would be that they were approaching (or on) the gas type curve ramp up (critical desorption), and heading towards the commercial rate, but needed the quick shut-in the complete the K4 frac.
The frac of K4 would have been organised some time ago and I doubt they could just put it off for an unknown period in anticipation of a commercial flow rate. So they would have just proceeded to completion. It appears the wells were only shut in for 4 days which is good. If so then that is probably only 2-4 days to get back to where they were on that dewatering / depressuring anyway.
Then add K4 pumping into the mix (in the next few weeks) and that sucks more water away from K3 also.....therefore depressuring a greater area.
I still think K3 will be the well to achieve commerciality in the short term but obviously the frac of K4 has put that back a week or two probably. It sounds like the end result will be all the better for the extra productivity though.