Sure, except when they make you so uptight that you lash out at people making suggestions that are contrary to yours.

One consequence of splitting the fleet may be reduced spectator / media / sponsor interest. For the race to truly be successful long-term, these are probably important factors (along with racer participation). This is especially true for a "grand prix" type of event, which something like this truly is.

Any time you can show results as one large fleet, it generally sells better than several smaller fleets.

So, if the problem is, there are too many boat types (and yes, 2 can be too many), consider making it a single one-design (or formula) event in the future.

I know, there are no "easy" answers...

Mike