The thing that bothers me about it is that they are sailing in a purposely designed trench for the record making it as far from what we would call "sailing" as possible.

While they are all powered by the wind (which is fine in my book), I do take issue with the conditions of the water on which the various records are being set. They're SO incredibly different I believe there should be three speed record categories; one for sailing in a drag trench, one for sailing in protected (flat water) shallow lee-shore like what Sail Rocket and Macquarie Innovation have been doing, and third for open water like what Hydroptere is capable of. Granted, you would have to put some definitions on these course types but these really are very different records sailed in these three different formats.