Idunno... Where the RNC seeks to insert itself, it's always good to be skeptical...
On the other hand, if the first debate is really scheduled for May 5th, and there are NO declared candidates as of April 1st, with many of the hopefuls saying they do not intend to officially announce until summer, it could just be a case of the debate planners jumping the gun, expecting the field to have been more established by now, and reacting to the fact that they have debates planned with no candidates to attend them.
I agree with the candidates choosing to wait, BTW. Why start hammering on each other now, while the Dems are continuing to self-destruct?