No big loophole, just sour grapes on Bruce Roberts-Goodson part, in regard to the business they sold to Bill Ingram two decades ago. Bruce Roberts International was the company started in the late 1960's that Bruce sold. This company has been sold at least once more since Bruce let it go. At that time, he lost all rights to the designs his office penned up. The current holder of these rights have maintained the BRI business, all records and client data, still issuing sail and yacht numbers for the designs of the 60's, 70's 80's and 90's, who's plans are purchased, which is a telling point about who owns what.
Some of the early designs have more than just dated styling clues. Some are CCA relics and early IOR conformists, which after the '79 Fastnet, should be carefully considered. Yes, many are strictly cruising and certainly viable as such, though against a modern cruiser, they should take a day or two extra, to make the same passage, which to many cruisers isn't such a big deal. All this said, again it depends on who actually did the design, as Bruce had some clever and interesting folks working for him, over the quarter of a century he did own BRI. Bruce is credited with these designs, though most of his best known, are actually someone elses work.
In a nut shell, Bruce made a play for getting home built and kit boats constructed in the USA, setting up coop's and builder's help groups, plus other stuff. Noble enough and a good idea, had it been a decade earlier (when he started the process). As a result, by the time he had his "ducks" lined up, the boom was long past and he took a bath. Financial considerations forced decisions, I'm sure he couldn't have envisioned previously and he lost nearly everything. With questionable tactics, lawyers and sneaky dealings, he's attempted to weasel back some of his sold rights, but he's lost at every legal turn.
All this is fairly well documented if you avoid cloudiness of the BRI or BRG sites. BRI has "standing", but BRG is still testing the waters, between court appearances.