I'm not going there with the "fair or not" discussion, but here is some info that might be helpful...

Having raced under, and worked on the Signal Boat with PU at a ridiculous number of NAs starting in 1997, I can shed a bit of insight...

For Hobie 16s, racing in 30 knots is ABSOLUTELY to be expected.

4-5 races per day is typically his target for NAs.

7 events in one day rarely happens, and only happens when there are numerous days of little or no races (either after a day or two of no races, or in front of a day with a bad weather forecast). He would not run off 5 days of 7 races.

Having also worked at a number of different championship events for other classes of boats, including Olympic trials, I can tell you that many other classes have a scheduled number of races per day (such as two). The schedule may allow up to one more per day, to either get ahead or catch up, in the event of missing races due to weather (or some other major issue).

Redress can be sought for missing races due to damage, assuming it's not your fault. I don't know if there is precedent for that to apply to more than one race. Ultimately, that is a question for the jury to decide.

EDIT: Before anyone asks (you'd be amazed at how many times I've heard this question), the key part here for a BYOB regatta is, the damage MUST be caused by an event that was not your fault to get redress. You cannot get redress if something on your own boat breaks (such as falling through and ripping a sail in a capsize that was not caused by someone else).

Supplied boat events are different, and you can get redress for a random broken part, again, at the discretion of the jury (so people don't sabotage a supplied boat if they have a bad race). And, if you capsize in a puff away from other boats and rip a sail, that would probably be considered "your fault."

Hope this helps.

Mike