Actually, the counter argument from 1 has been more along the lines of “Columbus has been getting comparable or superior results without Seth Jones to the results that they have with him.”
Then they explain that it’s hard to reconcile Jones being so great or his unspectacular metrics being a fault of his team, then ask the other side to explain what Jones does so well by their eye test, and the other side fails to do so.
I'm not sure people overrate him because of the "eye test" per se. It may be more a case of hearing all the hype surrounding a particular player, knowing he logs a lot of minutes, hearing praise from different sources heaped upon him, watching the occasional highlight package in which he looks good and watching his team now and then and noticing a few good plays that he makes and assuming he really is as good as advertised.
From what I've seen of him, he does look good, but I don't focus exclusively on one particular player when I watch games. There is a lot you miss if you're watching the overall action, especially if you are cheering for the team that a certain player is playing against.
If you're seeing a few quality plays that Jones does make and listening to the commentators while they talk about how much of a horse he is, how many minutes he logs, how he is Columbus' top (or co-best) defenseman and watching talented teams struggle to score against the Blue Jackets as a team (especially five on five), there's a good chance you'll end up with the impression that he is in fact one of the League's best defensemen or have that opinion reinforced.
I don't have a firm opinion of him one way or the other. He's a physically strong defenseman who skates well for his size and has a hard shot. He has a lot of stamina and generally looks quite impressive, but there is a lack (if not absence) of statistical evidence that he is elite. I just leave it at that.