I do think that the electronic devices are a good thing, to an extent.
But we each are responsible for our own cooks. We can use these devices to aid us and make our life more, or less, stress free during the Q. But we all know our grills, smokers and pits well enough to know their quirks and to keep an eye on them.
Weather can play a role if you're working in a condition for the first time, but each and every cook for us should be a learning experience. Look at all the great help we have here. Who could ask for more?
So use what you can to help you along, but always pay attention to what your're doing and you'll turn out the best Q you can.