It's OK saying it's "dry in Scotland atm," but first, where in Scotland? Secondly, it doesn't really matter what the weather is like now, if the damage has already been done. As far as covers are concerned, you need volunteers to put them down and take them back up again. Not always possible. Some tracks may not be allowed to put covers down, owing to their landlords not giving permission.
Berwick have/had covers, so maybe someone can tell us why they were not used in this instance?