Your putting you’re head on the block with that statement! but I get it completely, We banned barbed hooks on the stream and a few times a year the line goes slack and I look to the water and mutter… “you wouldn’t have got away with that a few years back! “. A fish will often get off a hook due to no fault of the angler
But it feels no failure, the nature of the brook means it was probably a tricky take in the first place and the fish is going back anyway.