Did I revive the thread that has laid dormant for a month with an argument? Have I been arguing with myself? LOL
Still the argument is not very good. Now that I went and read the original text, you omitted an important point from that guys quote, "once you get to the more expensive receivers (thousands of dollars) . . . ."
If someone agrees with what he is saying about receivers in that paragraph you quoted (with the missing text included), they can also buy the UMC200 and an XPA-5 or XPR-5. It's not the great argument for active monitors he (and you) make it out to be. It is a reasonable argument against spending thousands of dollars on a receiver. Passive or active setups are equally viable options under that argument.