There aren’t any bagged wines worth drinking. There are some ok wines with screw tops or synthetic corks. Wine drinkers don’t like the idea of things changing.
It all depends on the wine you want to drink in the moment. As my brother once pointed out when our mother passed away, there's drinking whisky and funeral whisky.
I think you're in more agreement with GP than you realise - as I read it they're saying it's a good system, but we (collectively/on average/'Big Wine') don't want it to change, so box wine is mostly at the low end.
Naked (vintner in the UK, and I think recentlyish launched in the US too) has started doing some boxes though, so some of the more popular (and again, cheaper, but it's a higher starting point than a supermarket) stuff they sell is starting to be available boxed instead of bottles.
I think Naked actually does all the bottling itself in the UK, so if it's popular it'll probably be quite easy for them to expand (i.e. bag and box more instead of bottling it) maybe just needing agreement from the vineyard.
I would have quite mixed feelings about it becoming standard though, even if I know it's better on paper.
> There aren’t any bagged wines worth drinking.
I have tried most and haven’t found any
Whether it’s actually “better” in any real sense is debatable. But wines are certainly distinguishable
Haven't really found a box/bag red that I like enough to keep buying. Instead I keep a bottle of some sort of red on hand so I can have a 1/2 glass with whatever food I cook that night.
Additionally, I order cases of more unique wines from b21 and keep it on hand for special occasions.
Also, your comment is US centric. I lived in Italy for several years and the boxed wine was fantastic. Same quality as bottled, fixes the issues presented, and viewed as better for the environment.