Why are subwoofers so polarizing?


I will admit I have never been a proponent of subwoofers in a 2 channel system. Maybe i've not heard the proper set up or the level of sub was not equal to the speaker. The last great application was over 20 years ago when I heard a Pro-Ac Tablette with a forgotten subwoofer. I'm sure in the last 20+ years the technology has improved but why are subs still mainly limited to home theater systems? As always I appreciate your time and thoughts.
dayglow
Primarily due to the frequency overlaps between the subwoofer and the non-subwoofer speakers in the system which makes it very difficult to appropriately balance frequency volume. Subwoofers aren't meant for serious music reproduction, they're meant for "sound effects".
The overlap makes the overwhole sound even better. But this is because the timing is that good. Rel is slower in respons compared to Monitor Audio. Ofcourse for some it is fast enough, not for me.
From showrooms to rooms at shows to rooms in homes, I've yet to prefer the sound of any system with subs. That said, there is one exception. One being: my room. But I have two, worked at placement, dialed them in carefully for augmentation only, and have tweaked over time for perfection. They never stand out and IMO are seamlessly integrated with my mains. Subs are speakers too, and thus, require treatment as such.
Audyssey Pro gives me stunning results also at show's. Even wenn the room has bad acoustics. The difference will be even bigger with the other competitors. For subwoofers Audyssey Pro is a stunning tool to get the maximum out of your subwoofer.