If communications are unlimited (not restricted to emergencies) by the SIs, an excellent case can be made that since everyone has access to the tracker data, it's information freely available to all boats and does not break a rule.
I can think of a few situations where it might help, but if everyone has the same access, it's no big deal.
The other critical use is attracting fans. These big distance races are every bit as important to the image of our sport as the major championships.
