While I agree with Pblais that the author of the article picked his parameters carefully I do not agree that this is junk science. Every boat design should (if it is designed by a reputable NA) include an evaluation of static stability. Dynamic satability is another animal and it is hard (but not impossible) to quantify.
I do find the author's lack of mention of GM (distance of center of gravity to metacenter) rather troubling when it is the accepted method for determining roll period and is the starting point for any dynamic stability investigation.
Suffice it to say that the article does not open any new ground and just enhances the conclusions drawn from the 1979 Fastnet race
, penalizing light displacement shallow draft
beamy boats on empirical grounds.