Even taking into account that it’s a gross exaggeration, I disagree.
I’ve previously recommended the Companion 3 and 5/50, and I’d do so again in a heartbeat.
If OP is looking for utmost quality, then yes, separates are the way to go.
However, if they’re looking for bang for buck, the Bose companion 3 and 5s and excellent.
They offer good enough sound quality, they’re very well integrated as a system (as in, there’s good cohesion between the sub and satellites), they’re fun/easy to listen to and most importantly, they produce a wide frequency response in ample quantity.
What this means is that, to get as good/better sound from separates, you need to spend significantly more (perhaps 30-40%).
This is coming from someone would typically identify as a quality snob. I own a room-corrected system and have built my own acoustic treatment. I even invested in a sub which contains opposing drivers just so that they don’t cause cabinet and local vibration, all for the sake of seeking perfection.
But I’m also realistic, and I know the Companion 3s and 5s very well. They sound great for the money, and they’d be my go to system for any desktop setup if you just want a decent sounding setup which doesn’t take up much room.