Blackdog40,
I didn't think you were making a judgement.
I had hoped I was providing you with some info that you would find useful.
I think you have asked the million dollar question--Is there a way to prevent fish from going 'belly up' when returned to the water after a weigh-in?
Many organizations have worked and continue to work to answer that very question. KDWPT has requirements for black bass tournament weigh-ins. You can read these requirements HERE.
In short, conservation agencies, tournaments organizers, and anglers are all working to provide for zero/low mortality events.