DME x 300 works really well for a 3 degree approach on to this runway because of the combination of elevation and DME distance from the threshold.
It's published on the plate anyway.
In short, there's no excuse for a competent crew not to be able to fly a VOR approach.
However, there's also really no excuse in this day and age for a major international airport not to have ILS approaches to all runways.
There is blame to be shared in a number of directions here.