I guess that a boat that has made a circumnavigation (or two) will be able to head for Bermuda. I know it is ruff, but you have just to take it with care and to know what you are doing. Probably the boat can handle more than what you are able to or at least more than what 99.5% of the sailors can handle.
You're right, of course, it's long ago been "proven" that just about any voyage can be undertaken and completed on just about anything that floats... Young Matt Rutherford, for example, is very close to proving that an Albin 27 is capable of a non-stop circumnavigation of the Americas... My only point is, such a boat would not be MY first choice for such a voyage...
The increasing use of U-bolts instead of proper chainplates on today's production boats is simply one of my pet peeves... I don't believe it's a proper setup, and it seems such a blatant example of a builder "cheaping out", and going with something easier, and will likely be "good enough"... And, it quite possibly will be, for 99% of the sailors of such boats... I could be wrong about that, of course... (grin)
Still, I don't like heading for a place like Bermuda aboard a boat I have doubts
about... Why should I assume the assembly line worker who installs the seacocks on today's Bavarias has more of a clue as to what he's doing than the guy who installs the deck hardware? What evidence do I have that the boys at the Bavaria factory know that, while a backstay tang may not be all THAT critical an installation, one can rest assure that they fully understand the importance of getting the installation of something below the waterline correctly, and the fitting of something like a seacock has been done to absolute perfection?
I'm sure my attitude sounds somewhat obsessive or even anal to many, but my experience has taught me one Dirty Little Secret about how 99.9% of boats "outlast" their crews when the going gets tough... It's due to the fact that they've already worn down their crews with all the "little things" that go wrong... Fully-crewed boats are better prepared to deal with such cascading failures, but as one who does a considerable amount of single/shorthanded sailing, I'd rather take my chances aboard boats where things have been properly done by the builder from the get-go...