Why would Q infer who Q might be?
Adm. Rogers was the NSA commander who defied Obama and warned Trump that he was under surveillance just days after the election. It’s a logical conclusion. But, if he is Q, how did he manage to say alive this long and why put himself at more risk now by doxxing himself? I can't even begin to imagine the bounty that is on Q’s head.
Another possibility was that “others” were taking too much heat for possibly being Q and something needed to be done to shift the focus.