On a previous garage door we had the rubber at the bottom for a seal. Worked great for normal rain, but when water came gushing down the drive, the water found its way in through the sides as you cannot seal the sides. Only happened once, but very little water entered the garage so not overly bothered.
We were advised that the best solution would have been a low profile drain off type of drain across the front of the garage. However we sold up and moved on. This was over 30 years ago so things may have changed considerably by now.