"Bottled or bagged kraut is better than from cans."
That is where I will most heartily disagree with you.
I've had more than my fair share of fresh chilled bagged sauerkraut that is just terrible. No saltiness, no tang, no nothing. Basically tasteless cabbage shreds in a bag.
Same with canned.
Same with bottled.
The delivery system doesn't make OR break the contents. Only the contents can do that. If the contents are bad in one delivery system, they're not going to be made magically good by another delivery system.