I think now days the ready made stuff is packed with nutrients so baby isn't missing out x
Personally I think they are more likely to get a balanced diet with the jars and pouches. How many of us have time to cook ourselves home made highly nutritional foods let alone consider everything a baby needs as well. Although I try to and sometimes have to make Albert's food cos of his intolerance I've always got pouches to fall back on and I get a bit panicky if I run out lol