You are wrong, that's exactly why you NEED a benchmark, but we still haven't figured out one that measures the "raw power" of the device
I use hundreds of tracks, and massive sample libraries, basically more than anyone else, and I just stick to buying the "best and most expensive" Mac out there. And I also always consider the noise and thermal envelope, that's why I have a Mac Studio 192gb/M2 Ultra, rather than a MBP 16 M4 max.
But I agree with you, the problem is that most people don't know how to differentiate between amateur Logic users and professionals.
And with professionals, you have to ask if the person is doing complex orchestral compositions for movies or video games or something, constantly having to churn out new music, or is it someone that only records a band and adds minimal effects, where even a new mac mini would serve well.