I think, the problem is just easy access to twitter. We have seen so many downfalls on Twitter, due to irresponsible tweeting, haven't we? I think, its just that.
Before the "pedo" tweet, I never felt, any problem with his tweeting. But now, this is the second big gaffe.
A twitter buffer feature, could have avoided both issues.
But at the same time, I won't like him to delete his account. Kind of enjoy his tweets - and knowing that they are his (sometimes raw) thoughts.
May be we just need to forgive more. If a person wants to recall a tweet. What they tweeted should not be held too much against them, perhaps.