I fish tournaments in my 1448 jon boat. I have a cooler with an aerator in it for a livewell. I can honestly say that all the fish I have caught over the years have been in good shape when I released them at the end of the tournament. Usually I have to fight with them to get them in the bag to weigh them. Needless to say, I don't know what happens after they swim off, but they all swam away quickly. My point is, if I can keep fish alive will cobbled together equipment, I don't understand why people can't do it in a "Bass" Boat!
I think a big part of the problem is how unwilling tournament fishermen are to help each other out. How many guys have been taught how to properly care for these fish in tournaments? How many of them actually know how to operate their livewell properly? Some tournaments I have fished, most of the competitors are jerks when you try to talk to them, everything is a big secret. Most of them, everyone is pretty friendly. They might not tell you exactly where they caught that 7lb hog, but they might say what they caught it on. At the end of the day, if you see something that someone isn't doing correctly, offer advice. We were all new at this at one time. At the same time, when someone offers advice, whether you listen to it or not, don't be a jerk about it.
By the way, the secret to my cooler keeping fish alive and happy is to add fresh water from the lake about every 30-45 minutes....

Tight lines everyone!