Viewers are generally pretty bad at understanding defensive play. They miss defensive details, overemphasize goal events, misattribute things to defense and goaltending, and focus pretty exclusively on reactionary defensive plays - the flashier the better. Ironically, this leads to some players getting a boost in defensive perception by being worse defensively overall, but being skilled in reactionary defensive actions. There are also some people in this fanbase that will only appreciate one specific type of defenseman. Holl wasn't some bulking hitter, and he had the occasional flashy gaffe, and that made him a lightning rod for a subsection of the fanbase, but he was pretty effective at many of the quieter, less flashy aspects of defensive play.
Yes, Holl had a bad playoff series in 2022-2023, and yes, he made a glaringly bad play from time to time over the years, but he had been an effective complimentary player playing 20+ minutes a night in one of the toughest roles on the team at a really good price point. Benoit had one year as a decent complimentary bottom pairing defenseman. They don't really compare.