Smart trainer front wheel support

I still have an adjustable front wheel support from on old trainer. I’m planning to go for a “Climbing Road Race” specialty phase next year so I wonder whether this thing makes sense to lift the front wheel a bit or is it completely useless nonsense from a training point of view?

A watt is a watt is a watt. Unless you are training 100% indoors I wouldn’t bother, so much more involved in climbing than can be replicated indoors.