Yes, a great suggestion to stop people drinking ANYTHING from dawn to dusk.
Are they trying to make their followers ill?
I can understand the fasting concept, but surely allowing a person to drink a glass of water every now and again would be a good idea.
I went to Saudi Arabia on business about 10 years ago, and it was HOT HOT HOT. And Ramadan was due to start a week or so after I was there.
There were signs all over the company building asking people to drive home carefully at the end of the day if they had had nothing to eat or drink as they may be weakened and drowsy.
Seems many people have "parties" at the end of the day, so people RUSH home in their cars to get to these parties, to get something to eat and drink, but in their weakened state (no food or drink) they were having car crashes.
Still find it hard to accept a religion can expect you to put yourself in such danger.