That's exactly why turkeys are in decline... the biologists were taught incorrect information back then and because of that misinformation, they grossly mismanaged the resource for 3 decades. Fortunately for the turkeys, there wasn't enough hunting or predator pressure on them that they could still thrive despite the mismanagement. But that is no longer the case. More hunters causing unnatural mortality and more predators who have adapted to effectively killing predators has led to an incredible increase in natural mortality.
Heck, back in the 90s, biologists thought natural loss of adults to predators was basically zero except for a few hens lost during setting.
Now it's taken 6 years of studying them with radio collars to figure out what I told them 2 decades ago... season is opening before the majority of hens have been bred, and mortality from predators even on adult birds is much higher than previously thought. TWRA/ UT has not released the results of that 6yr study. But the results will be what I just listed. Sometimes you can understand an animal, it's behaviors, and it's biology better living with it for decades better than those than reading about them in a classroom.