Is there an advantage to the 1" sensor? Opinions requested.

there is no advantage. you can do the exact same by "digital zoom", maybe back in the 6mp APS-C days there was some advantage in having a higher pixel density because there was headroom in the lenses. These days with 36mpx full frame, the sensor essentially captures everything that is there. "Better", higher resolution lenses have downsides, all the coatings and multiple lens elements, particularly in zooms, creates unnatural looking images. if you want the most compact reasonable system for wildlife etc. go for a reasonable aps-c dslr dslt or mirorrless.