Agree about the Barnes Bugle. It has provided the best coverage of this issue.
People campaigning on the bridge were trying to persuade Hammersmith and Fulham to raise the weight limit on the bridge to allow blue light services (not presumably full sized fire engines). An ambulance weighs the same as a fully laden hopper style bus so if you had one you could have the other. The only way these pods would be useful would be if, for some reason, the council decided to raise the limit sufficiently to allow them to run but not enough for ambulances.
I have no clue whether the money from the Structures Fund, would allow the weight limit to be increased but, if it did, a return of some sort of bus service might be possible by 2030.