Crunching the numbers in your example, there's a 92% chance no coin does better than 55% correct. Randomness happens, but the law of large numbers usually refers to much larger numbers than 1000, and there aren't 1000 huge companies being investigated right now. I think suspicion is warranted here
With two Boeing whistleblowers dead in one month, either Boeing is actively killing them, or there are enough whistleblowers that this rate of death is not statistically significant
...and I don't know which possibility is the least worrying