If this is what matters most, I think go for it! Obviously being realistic about planning your day's schedule is important. However a great photographer should always be planning to make things as time efficient as possible. A few things to think about in preperation for this would be:
- Making sure there's plenty of snacks/entertainment for the bridal party along the way
- Confirming with the driver/s about the safest & fastest routes to ceremony-photoshoot-reception
- Making sure the photographer is very aware of the locations, to minimise the preperation/packup time at your ceremony-photoshoot-reception
- You may also consider having the photographer travel in the bridal car. That way you could get some shots along the way. Or if any of the schedule changes on the day, at least you're all then together and can maximise photo time.