Yeah, that's what I'm trying to say. VSC takes away the incentive to be naughty. They could still blast past the scene and stay positive on delta, but they would gain nothing and risk a penalty.
Well, if they plod along their temps go down, which is why they drive so erratically under SC and VSC conditions in the first place. So it's not correct to say they gain nothing - if they're desperately trying to work heat into their tyres, they will not wish to make the delta by maintaining a steady speed. But they will wish to make the delta. That will mean going fast at some point while in the vicinity of the incident. And from what we've seen so far, there doesn't seem to be any risk of anyone being penalised as long as nothing goes wrong.
So yeah, I think it is not as good as slow zones. But I do support the concept of cutting out the long SC procedure, cutting out a lot of the unfairness that comes from removing earned gaps, and just slowing the cars down until the incident has been dealt with, then restarting the race straight away without pratting about.