Rule 29.2 General Recall

1. At the starting signal the race committee was able to identify boats that were on the course side of the starting line.
2. There was not an error in the starting procedure.

Neither of the reasons to signal a general recall apply, so it is an improper action of the race committee to signal a general recall. Rule 61.4(b)(1) entitles her to redress if her position score or place in a race or series has been made, or may be made, significantly worse through no fault of her own.

It was not her fault.

The difficult part is determining if "her position score or place in a race or series has been made, or may be made, significantly worse" If none of the boats returned the scores would have been 1, OCS, OCS, OCS, OCS, OCS. so likely her position was made worse.
 
The next problem is what redress do you give... maybe you grant redress, but let the scores stand.

But, unless I am misreading the original post, the “restricted finish” in this case is 2/3 of the way up the course and nowhere near the starting area. The only boats playing in that area are the 18s and the H16s would only be there when finishing. So, again, I’ll ask, what issue are we trying to resolve by restricting this finish?

Agree.  As long as it's getting our of RRoS ok.

Draftable has a button to download the compared version.

RRS 63.5(a) requires protest committees to find facts 'based on the balance of probabilities (unless an applicable rule requires otherwise)'.

Finding fault of a boat’s own is a conclusion rather than a fact, so it's a matter fo  logical reasoning and judgemt by the protest committee, but, as fa  as it's relevant, I can't see any reason to depart from balance of probabilities.

Maybe it would help the discussion along if you pitched up a concrete example where you would be uncomfortable with BoP.