I've never had a guy go with me to operate the controller. Yes I have a RM remote, but I still use it less than 20% of the time. Still somewhat stuck in old ways, and don't have the time quite often to take 15-20 minutes to install the pigtail or explain to the customer why they should be charged for it. I love it, and wish pigtails were set up on all jobs. If by myself, I either just run through a 2-3 minute test cycle for all zones checking and adjusting, go back and forth to the controller to advance zones, or turn on manually at the manifold and then just a quick check to make sure they turn on electrically.
Yes, remotes make it easier and quicker. But when pressed for time, I can't justify an extra 15-20 minutes per job installing a tail, when I have 5-10 jobs set per day. Yes it would make it easier for future service calls.
Larger jobs I try to push for the tail. 1-8 zone systems are the ones I let slide without.