I’ve had mine for about 6 years and it’s not shortened the lifespan of any of my bike components. As said above, many OEM bearings are often pretty cheap/rubbish quality as its a place to save money on the build with out having visible crappy kit on show.
Also even on full power you’d have to be blasting it under the seals of bearings, forks, shocks etc. I’ve also used full power jet washers to clean my bikes and they’ve never caused any problems (although with them I am pretty careful when cleaning anything with a seal. Seeing as they can remove car paint if you’re not careful.