It could be circumstantial that those who decided to report just happend to pull hooks. We are making assumptions based on incomplete information.
That being said, with the tuna so close there are lots of inexperienced anglers out there.
Improper drag settings, bad rigging and fighting techniques are sure to take its toll.
Almost every report contains "They bit the small black and purple jet head..." Maybe some people are rigging their small and "micro" lures with improperly sized hooks? A micro lure rigged with a small hook on 80# with drag settings to match? Your going to here stories like "Bullshit! The whole boat fished cows with XXX hooks and we did'nt loose any!" Don't try to convince me that you won't pull more hooks on 80# with a 3/0 hook. I go with a minimum of 5/0 double (tuna style) or 6/0 single hook.
One theory suggests it takes a certain amount of drag pressure to take most of the stretch out of the mono. Thus one reason to set drags to 25-33% of the lines rating. I troll with 80# but with only about 12-15lbs of drag. Many of my friends troll 40# (P.B) and do fine. Becareful though, albies have brittle mouths and I can't see it taking much pressure to drive a SHARP hook home OR rip some lips with improper hook size to drag ratio.
You could make the arguement that if a "belly" or "arc" forms in the line (billfish) the drag of line in the water has enough pressure to pull drag but not set the hook on hard mouthed/billed fish; thus throttle hook setting. I feel if your troll fish pulls drag, that albie