Impossible to escape [Snooker Controversy, Interesting situation]

Sometimes even the top players can't tell for sure how to play certain shot. Here are two interesting moments when the players potted red and got themselves in all kinds of trouble. Usually miss call depends on referee's interpretation of the shot you've played. What to do when it's literally impossible to get out of snooker? I think that it was right not to call a miss in Jamie Jones's situation. Though I'm not quite sure if it's okay that he didn't nominate any colour before his push shot. And I completely don't understand referee's decision to call a miss when Michael Holt tried to escape for the first time and then not to call a miss after his second (the same) attempt.