Absolutely, and this is the fallacy with tautological arguments like "You should not overdo anything".

The real question is how much is considered "overdoing", and then the argument falls back to a common-sense fallacy (until it doesn't work)...

From the article, it sounds like the author was spending more than just 40 minutes a day on their spiritual pursuits. They also didn't describe their actual practice.

This thread seems to be full of people trying to debunk meditation as some kind of dangerous dark art.