A lot of people arguing that these changes wouldn't bring benefits, or that the increased walk distance would crater ridership. I can provide some context from the SF 38 Geary[1] (often claimed to have the highest public transit ridership west of the Mississippi). Some time before COVID, there were 4 variants: 38, 38R which stops every three regular stops, and the 38AX and 38BX which would follow the outer route and then skip most of the stops in the middle(the former was explicitly meant to take commuters from the west side of SF to downtown). A dedicated bus line was added to Geary (with some resistance from some locals as in some areas it required removal of some parking spots[2]).

I have experience with the first three variants before and after the dedicated bus lane. 38AX only ran a couple of times in the morning, always packed and would reliably take 30mins from 25th street (it's last stop before downtown) to Market street. Before the dedicated bus lane, the 38R would take about 40 to 45 minutes from 25th street to Market street, after the bus lane it now takes 30 minutes (making the 38AX redundant). Before the bus lane, the regular 38 would take about 50 minutes from 25th to Market. Google maps now says it takes about 40 minutes.[3] So a dedicated bus lane made as much of a difference as removing every stops in between, while stopping every three stops satill yields about 1/4th of time savings even with the dedicated bus lane (and none of these lines start at 25th, used that because it was the final stop before downtown for the 38AX, riders coming from the start in 48th would see additional savings).

When looking at the ridership, the 38AX was always packed (as it came only a handful of times in the morning no one wanted to miss the last one and then have to take the 38R instead losing 10/15 minutes in their commute), the 38R is consistently more used than the 38. Right now the 38R comes every 6 minutes and the 38 every 15, so whether the ridership is impacted by travel time or frequency, I can't say. At night, only the 38 runs.

[1]: https://en.wikipedia.org/wiki/38_Geary

[2]: https://sfstandard.com/2023/08/15/despite-protests-sfs-geary...

[3]: https://www.google.com/maps/dir/37.7799217,-122.4846478/37.7...