Make the playing field even. I feel you. But then they'd have to make the playing field even for clinical boards too. Like, why is the Florida exam and Delaware exam more strenous than other states? Delaware has higher fee schedules and better compensation...Florida...vacation state...etc. Dentists from other parts of the country have historically had a very difficult time getting licensed in those states..Then again, I'll in support of a national clinical board exam..
For people to stop going across the border for dental care though, the prices at the dental school level will have to be competitive. My program did not accept any insurance-it was cash, credit, debit; and if the patient didn't have it, then tough luck.
So, some people with limited funds are willing to take the risk to go across the border due to finances. I'm hoping the new school will curb this situation,but that remains to be seen.