My thoughts on AT;
Use it when it fits
Don't avoid using it, but if you do use, use it intentionally

I've used it for various reasons on tracks, some recorded by singers with very good pitch. One use is for a 'doubled' track. Tune one a bit and not the other ..

On the flip side;
Imagine if Dylan had used it .. or Robert Smith .. it would have wrecked the recording.
It's a tool. You don't need every tool for a given job, but if you do need it feel free to use it.

I do not work here, but the benefits are still awesome
Make your sound your own!