I agree with that but there is a point of diminishing return. The Harvey 2hp (which is what I ordered btw) nets out at 411 lbs. I really doubt that vibration will be an issue. Before owning a PM66, I had a Jet contractor saw. It was a good machine that performed very well. Every bit as accurate as my PM and it certainly didn’t have vibration issues. Those saws were almost 20 years ago when I got out of the craft.
Getting back into WW today, it appears to me that most machinery for the average home woodworker is way over kill with the exception of the the SS brake feature. Again, back in my day, my contractor saw reliably produced exactly same results as my American made 600lb PM66. My reason for the upgrade back then was that I got a smoking deal on the powermatic and it had a cast iron sliding table.