I was not sure "IF" the criteria was spelled out or not, as to how Johns list came to be. As such, then it would be easy to see "how" he got this list together. And why it should be looked at as such. Also why, your boat may not have made the list, ie one item was to small, lets say water capacity, gain, I have NOT looked at his list. So your boat has too little water, add a tank in an appropriate place etc.
Obviously there are other boats that can make the trip, ie a Volvo 70, altho not what a cruiser would take generally speaking, but certainly capable of taking one around the world.
So in the end thos, one needs to look at the reason John choose what he did, see if those reasons/criteria meet "your" needs and choose accordingly. Probably hence, why I personally look at it as a basic list of boats that will work. Look at them for who what why and how they work, then choose a boat for you needs, follow what you think/want to follow etc.
She drives me boat,
I drives me dinghy!