By definition, hobbyists in any hobby -- whether audio, photography, cooking or whatever -- like experimenting with things. The mere fact that we are all here on an audio forum indicates that we like playing with and talking about all things audio, hence the endless debates about which cartridge, DAC, preamp, amp, speakers and so on are best suited for which listeners and what situations.
When you have a powered speaker, you've just handed one of your big choices to someone else to make. No surprise to me that lots of hobbyists are unwilling to give up the option of choosing what they think works best for them.
Meanwhile, on the pro side, those people are being paid to do a job. They typically walk into a studio that was built and equipped by someone else, so you work with what's there to get the job done -- a much different mindset from that of the audiophile at home.