[morgante]

This metaphor is really stretched thin and doesn't help much with explaining anti-tech sentiments.

I really don't see why complicated wizardry is required for something to be magical. That seems to be an assumption coming from the author's genre. There are plenty of brands of magic which include extensive creation of magical artifacts which anyone can use (akin to consumer electronics).

As for anti-tech sentiments, I don't think any complicated allegory to burning witches is required. It really just feels like the natural result of technologists gaining wealth—almost every high-earning profession has significant critics (cf. lawyers, investment bankers).