Can confirm. The first time I saw an automatic spellchecker was probably with WordStar around 1989, and it blew me away. How can the computer know all the words? That's insane! Sounds lame, but it's true. It was a different world.
It seems that anything that helps people gets this reaction these days. On the one hand, the argument 100% resonates with me. On the other hand, spelling isn't really the end, is it? It's just a means to an end, so what's wrong with making the mean easier? Did people worry that you'd stop knowing how to plant potatoes when trading was invented? EDIT: The example doesn't make sense because agriculture is newer than trading, but you got the idea.