I wish companies would do away with the "leaving to pursue other opportunities" nonsense and just give no reasons if they don't want to discuss it. No C-level exec resigns "effective immediately" without either a transition plan in place or something concrete lined up. I get wanting to allow him to say he resigned instead of he was fired, but the silly language of the press release just makes it worse.
Because it's not a soap opera and you're not owed anything about the personal business of other people. As an individual, I have every right to control the narrative for why I've left a company (assuming nothing illegal).