That doesn't follow. If anything, I would expect knowing, for practical reasons, you have to learn something you think is dumb would make you even more angry about it, not less... or, maybe, you just believe something being either popular or common means it must be good? :(
It's reasonable to have the opinion that juggling chainsaws is a dumb idea, even before you've learnt the techniques for making it slightly less dangerous.
Is that really any dumber than doing any similarly dangerous industrial jobs that require a lot of training? Or something else dangerous in entertainment like being a Hollywood stuntman, or being Siegfried & Roy? I'm sure you could get a lot of money for having that skill if you did it in the right place.
