Meh. He's just ending on a high note. He'll grudgingly come around in the next week or two, and leave fights to convention speaking time, rules, platform, etc.
Maybe.....
I took it that he's going to take his fight on the issues to Philadelphia, not his candidacy.
Don't you get it? The semantics don't matter. It's painfully obvious what the consequences of his fruitless, continued presence will be, and his supporters are not going to be able to discern between taking the campaign to the convention and taking the movement on the issues to the convention.
He is directly standing in the way of unity. In fact, he's helping tear the rifts even deeper.