This is good advice, work is not a one size fits all solution for self actualization. Most workers just want to fill their requirements and do something meaningful to them with the rest of their time.
I especially like your point about enjoying the fruits of mastery of a task.
They replied to the one that told them their magic advice didn’t actually help them (and they still burned out) with some variety of “That had nothing to do with my advice, you just did it wrong.”
That’s… not cool.
Someone who is not willing to listen or reconsider will easily be susceptible to burn out again. Especially to advice only intended to help not criticize.