They didn't ask for my opinion.The prior version of Rule 40(b) was 5 states. It was changed in 2014 to 8 states.
If you had said that no one earned it (by meeting the requirements), and therefore no one "deserved" it, then I would agree with you. But the only way to "earn" it is to get a majority of delegates, and meet any other rules, such as 40(b). So, Trump and Cruz are the only ones with even a remote chance of "earning" it.
I guess I see "earning" it more abstractly, if no one gets the majority. Clearly, >1,237 delegates means earned/deserved/closed the deal.
By falling short, "earning" it to me takes on a broader meaning. Earning it in the sense of having done that which proves one would be a good president.
(I think a commentator last night, still expressing shock at how well Trump is doing, lamented that it seems like people don't understand that they are NOMINATING A PRESIDENT! It seems like Trump voters seem to be looking to nominate a celebrity or a personality. I kinda agree. The man is not presidential.)