Yeah, that's a fair point. I think Vettel is making more mistakes now he is having to fight the car, too. The car doesn't suit his style anymore so he is having to push harder to keep up.
I just think that Verstappen is involved in quite a few incidents that are the result of poor judgement, even if they are decisions that have to be made in a split-second. Whether to defend a corner or wait for DRS on the next straight, whether to lunge into a corner...
I honestly think he still has a long way to go before he is fully developed as a racer. He may be a fast driver but sometimes he makes the wrong decisions