Says who? He already answered even before you asked the question, in the post you quoted: the spirit behind the rules.
And I add: the tradition. When candidates were eliminated mathematically from the first ballot, they dropped out to not make a mess of a convention which the voters won’t put up with. Romney dropped out to let McCain cleanly get the formal number. But now Kasich is blocking Trump preparing the way for an illegitimate Paul Ryan or most likely Romney nomination.
And I add: the voters. You mess up the convention and steal it from the candidate with easily the most assigned delegates on the first ballot, the voters won’t show up after seeing such travesty.
“And I add: the voters. You mess up the convention and steal it from the candidate with easily the most assigned delegates on the first ballot, the voters won’t show up after seeing such travesty.”
Actually, you might see a number of kamikaze voters...