These people are supposedly in an area where there are lot of these animals,
No reason to suppose that. It's an unsubstantiated claim, and no more.
yet the frequency of sightings is once every 6 weeks per person with the average time being only several seconds. In other words, these animals don't give people any opportunity.
Why do you assume that the claim is true and then invent a fanciful creature with fanciful qualities to support the claim? Isn't it far more likely that the claim is in error? (Hint: Yes. Yes it is.)
It's frustrating seeing people assume that Bigfoot would behave like a known animal. It's not a known animal so it might not act like one.
There are things that living organisms do. People claim that bigfoot is a primate, and possibly even in our genus. Okay then, at the very least it's a large mammal in a temperate environment and at most it's likely somewhere between humans and great apes in its general behavior, anatomy, and physiology.
It is an endothermic homeotherm.
It has a long gestation period.
It takes probably at least 10 years to reach sexual maturity.
It is long-lived (several decades).
It has opposable thumbs.
It both uses and makes tools.
It has at least a rudimentary language.
It eats, poops, dies, etc.
etc.
What would you like to propose about such creatures that would deviate from the items listed above?