I’d slightly disagree, the profile of people who go missing is as important as a random chance there is a coincidence. Former military officers, high-level scientists. These individuals have training, money, and live in areas where this tends not to happen.

A disappearance of someone from the above background, vs someone who is say in midwest rural America or near areas where human trafficking crimes occur at a higher rate than normal, matters.

Further, their research/knowledge of sensitive government material also implies they likely have some form of overwatch or at least minimal monitoring for foreign agent threats from our government (or had in the past). Its not uncommon for high ranking military officials to have some form of training in counter surveillance tradecraft for this exact reason.

The odds these events are due to a foreign adversary given the multiple wars and geopolitical tensions are not negligible