Honestly, IMHO, the people that have their excitement level decreased by the recent communications from Ron and the campaign are likely the ones who had unrealistic expectations in the first place. Just think of some of the things that people got their hopes up for in the last couple of months: people were so sure the RNC would be brokered, people were so sure that all delegates were unbound, people were so sure that the "stealth delegate" plan really meant Paul was going to steal the nomination, etc, etc, etc.
So yeah, some people have come back down to earth because they are finally accepting that there is no Santa Claus and Ron Paul is not going to be the nominee. He's not going to give the finger to the GOP from the podium at the RNC.
Reality sucks, when one has been living in delusion.
But for those that have accepted reality all along - this email is a great reminder of the incredible strides we have made this year. In 2008, he had 35 delegates IIRC, this year he will have around 300. Only double the votes, but 10 times the delegates. That is a great thing, and it demonstrates to the GOP that the libertarian-conservative wing is strong, organized and growing. As Ron said in his email, "our liberty movement is the future of the GOP".