Nothing wrong with a dinette...
I don't think there is anything wrong with a dinette. And in your 27 foot boat, I'll bet it's a wonderful place to hang out. But I own a 22' O'Day. Ever been in one? It's much smaller than your boat... especially inside. It is really hard for me to imagine two people, let alone four, sitting across from one another in the early O'Day 22's with the port dinette. I think they did this until mid '73. After that, they changed the arrangement to a pedestal table which sat between the two berths. Still tight, but it allows four people room around the table. Interestingly, the specs also say it "sleeps five". I think that the later claims of two adults, plus two children, are more realistic.
