While true, the energy delivered to the subject depends on the radiation pattern. A 100W light bulb can help you pick out clothes in the closet, a 100W laser can cut steel (sorta).
That's in part why I said 'sorta', but Kern actually sells a 150w CO2 laser that they will support for metal cutting applications (2mm for mild steel).
I'll conveniently ignore the O2 assist for the sake of counterpoint. :)