As a former 'Hunter Hater', I think I can answer the question of why? Way back (step back into the 1980's, please) Hunter had a very ugly deck/hull joint and anything & everything above it looked like the deck of a enormous cargo carrier. Those boats were ugly. Then, Hunter got swept up in the Center Cockpit thing, and it returned to the massively & eye distressing cargo carrier deck look that so hurt the aesthetic appeal. So many 'old salts' would shake their fists at those owners & complain that UGLY as sin is as bad as cheap.
Then, on a single model, for a very short period of time- Hunter suffered extreme hull osmosis. It wasn't all boats, merely 1 or two models and once identified- production was fixed and 'the problem' stopped occurring. I'm not sure what Hunter did to address the issue with owners, but- regardless, they became the butt of every sailor as 'the worst boat ever built'. Hmmm, seems harsh, but it did unify sailors for a little while.
Remember, this was 40 & 30 YEARS ago, so- it slips from memory of the average sailor of today. But, tons of armchair sailors want you to buy full keel 60,000 Lb. displacement hulls to sail on any pond 'just in case'! Even those original CC's that were topdeck ugly had no issues of build quality, longevity or safety- owners would laugh as they loved their full comfort vessels at those who shook their fists at them!
Somewhere in the mists of time past, Hunter figured out a very strong Hull/Deck joint that didn't require an ugly top deck, even though they 'kept' the high freeboard that still identifies the boats in every harbor. If you are considering buying a boat, Hunter makes so exceptionally nice ones and most have more amenities from the factory- go ahead, they are great boats. No manufacturer has been so bad to remain in business for decades with buyers- year after year.
BTW, I'm considering a used boat purchase and build out for a possible circumnavigation. Guess what? Hunter's 41 (AC & DS) and 44's are the top (3) vessels under consideration. Why? B & R rig & the traveler arch, and shaft driven motor. The right size (LWL over 35'), well designed & sturdy hulls with plenty of arch options (mount solar panels, wind generators, dinghy davits, radio antennas), lots of possible sail area down low for comfortable sailing with less heeling. No, it's not a deep keel, 60,000 Lb. vessel but closer to 'right' than many other vessels with similar dimensions. So, if you're looking for a weekender, an island hopper, a sturdy Great Lake boat and obviously a coastal cruiser- you could do worse. (Your mileage may vary, of course!)