Again, look at what he wrote.Depends on what needs to be done. If the guy needs to break the bead and rotate the tire, then lots more time involved than a simple balance job.
"If that does not work, then they do a road-force balancing, "
Road force balancing is simply using the roller to apply pressure to the tire. That's it. That's all. It's not doing all that extra stuff you're talking about.