OK, so if you are shooting interiors with no moving objects this isn't an issue. But when it comes to outdoors with traffic, people and clouds etc and is very much a factor.
Adding a basic .jpg to your shooting adds little weight to the total of the shoot and I would say the benefit to me at least is worth it. Look at it like this: You shoot multiple shots outdoors where object are moving. You don't want to have to process RAW files only to find the ones that are going to be useful for your panorama stitch. Better to quickly view the .jpgs take note of the file names and select these RAW files (only) for processing.
Regards, Smooth
