This is a good point, picking an appropriate format is key. I truly believe that wedding photographers in general are offering services that are overkill for what the mass market is really willing to pay for. (What they want is a whole different question.)
The point I'd like to make here is that the photographer gets to define what products and services he or she is willing to offer and the medium(s) of capture they are willing to use.
When the definitions don't match there is no shame in both parties walking away from a deal. This happens all the time; product shooters might avoid fashion shoots but happily do portraits, fashion shooters might avoid landscape work but happily do street photography.
The only thing the shooter needs to worry about is getting paid fairly for shooting these snaps at the reception.
The magic for me is controlling the shot count and shooting to provide the expected output. If the client wants an album with 40 pages I know I will need about 60 finished images which means I need to shoot at least 120 but really no more than 180 shots for the job.
The big current challenge is getting the client to understand that they don't need 1,000 professional shots to make a great 40 page album. If they can't grasp that concept the client isn't a good fit for me.