You are right. Let's say this stretches out for a few weeks and Trump then produces a long form birth certificate. Contrast this with the years, and millions of dollars wasted, hiding the form in Obama's case. Most Americans will realize something is fishy. And nobody will care that Trump was not clear about the difference in the 2 forms. It will have been a learning experience for everyone.
About the time he has milked the BC issue and everyone knows the difference between a COLB and a long form BC he can jump on 0bungle for having multiple SS#s or not releasing his Harvard records.