They would know just from them being wasp pollinated that they are ripening about the same amount of time as non-pollinated ones. Their ripening schedule is the same as areas without the wasp, accounting for weather differences.
In some places, they bring in caprifigs to the orchard for pollination, (which I know you know,) and so no doubt, they would see if figs are ripening earlier from pollination for any non-smyrna figs. And hand pollinating has been done for probably millennia too, certainly it’s been done since before the days of Condit, and I think they would notice if they were getting figs 6 weeks earlier.
Maybe Smyrna figs are the perfect example because they require pollination, but have the same ripening time as non-Smyrna figs.
In my area, only some of my figs are wasp pollinated, so I see it every year. The one thing that can have a bearing is the type of caprifig. Clearly, I don’t have any that are causing earlier ripening here, but I know in some academic papers, pollen from certain caprifigs caused earlier ripening by a few days I believe.