Sure you can cross oceans in a production boat ......
its the risk that you take as most 'coastal' production boats are simply not as strong (about 1/3 less strong) as a 'bluewater' design. Notwithstanding 'skipper expertise' many boats have simply broken apart and sunk because they were too weak for the 'conditions'; the historical records are full of successful ocean crossings but rarely does one have the opportunity to investigate one that 'disappeared and was presumed lost' as that 'evidence' is gone.
Design categories (inshore, coastal, bluewater, etc.) have evolved from what has actually worked and and what has sunk - from insurance records and records of actual failures. This had led the designers evaluations of such failure to come to a fairly common 'scantling' for the target venue on which the boat is to perform.
The engineering designs generally are usually:
Inshore design - twice as strong as the average conditions found in inshore water.
Coastal design (almost all production boats fall into this category) - three times as strong as the average conditions found in coastal sailing
Offshore/passagemaker - four (or more) times as strong as the average conditions found.
Sure you can cross oceans in a BeneHuntaLina .... Its just that you have 1/3 less chance of surviving or 1/3 greater chance that the boat will break apart than if you went across in a "bluewater' boat according to the historical/insurance (scantling) records, etc. You roll the dice and take your chances .... entirely your choice.
Just look at any chart for just about any area of the world .... I'll bet the farm that those who once sailed (and maybe survived) all those thousands upon thousands of indicated sunken WRECKS would have something to say about how safe or how strong in construction a boat should be.
