I believe that Pope Francis is using the same wisdom as Jesus did when his detractors weren't really interested in dialogue or learning,  but rather,  trying to lay verbal traps and  play "gotcha".  Burke and his cohort made it clear from the beginning that they had a malicious intent to "correct" the pope,  not dialogue with him about the results of the synods which were reflected in what he wrote.  Jesus didn't play gotcha games and neither does Pope Francis.   I say,  good on Pope Francis.   He is a wise old fox...  and I say that with affection! :)