They should just be marketed similarly to pet food, where they're labelled as 'complimentary' and it makes it clear they're not for every day/every meal use (so not 'complete' nutrition).
I personally don't give them my baby as they're expensive and it's easier just to share my own food. I do have a jar of baby porridge that I use maybe a couple of times a month if I'm pressed for time and I'm planning to eat out.
I think, like everything else, things like pouches are fine in moderation. Not the most nutritious thing, but fine as a new texture for them to try.
I think it's hard sometimes for working parents and parents of more than one child to find the time for cooking, which is why the pouches can be helpful, but tbh a slice of wholemeal toast with peanut butter/other topping, and some very easy to mash fruit like raspberries really don't require any more time than pouches 🤷