Yes you are wrong. Neumann and Genelec are among the best studio monitors (and are actually used for music production). They measure superbly (see the measurements here or in Erin’s audio corner) and have absolutely nothing in common with what you described from decades ago.I tried a cheap and old pair of active speakers and they made really bad sound, most noticeably were crackling and popping. I suspect that the reason may lie in the electric cable. Also, I acknowledge that so many audiophiles spend thousands of dollars on passive speakers which also require separate and compatible amps and cables. I suspect that they do this because the sound is cleaner in the passive design. Am I wrong?
On top they offer digital room correction which is by far the biggest contributor to neutral sound next to the speaker itself.
I use Neumann KH80/KH750 in my office and KEF Reference 3 plus Sub in the living room - one active the other passive and both excellent.