Williamson aside, openers Martin Guptill and captain Brendon McCullum, as well as Taylor's footwork, looked far from a foxtrot at the batting crease.
Not so Williamson, who never looked like putting a foot wrong on a wicket that offered spinners no purchase.
"We were fortunate to have won the toss," he said in his post-match speech as man of the match after his sixth ODI ton and that put the game in perspective.
A pertinent point because what happens if the coin doesn't roll your way?
"As a batting unit we have players who are capable of being dominant," coach Mike Hesson said, observing both tons were "quite different but skilful".
New Zealand's best batsman, Martin Crowe, had heaped plaudits on Williamson this summer and deservedly so, although a Black Cap who can play shots in the wristy manner of Crowe has yet to emerge.
It is a purple patch for New Zealand who are on a joyride to the cup.
Are they world beaters?
It's hard to draw too many conclusions following pre-cup matches, considering teams, including the Black Caps, seem to be curtailing their prowess so as not to peak too soon.
That test is likely to come against the big boys such as Australia, India and South Africa in the cup playoffs although warm-up games against Zimbabwe and the Proteas are pending.
From Hesson's perspective, it is safe to deduce spinner Daniel Vettori earned his keep, with 1-41 from 10 overs, and he has the most scalps (26) any bowler has taken at the venue.
The number of wickets yesterday wasn't going to matter either because it was a test to see how the spittle shiners were going to think outside the square once the tourists got going with the bat.
Left-arm opener Trent Boult was Vettori-like in the frugality stakes (4.29).
Adam Milne, at first change, mixed it up well with bouncers and potential yorkers with an outfield that didn't show much sympathy when batsmen went willow fishing.
Mopping up the tail saw Tim Southee claim two wickets but, like Grant Elliott, he took some stick in his earlier spells.
It's Sod's Law that if batsmen have an air of pomposity about them then bowlers must invariably come to terms with humility.
Hesson thought if seven bowlers were going nicely in any conditions then mixing them with a dose of confidence would be the way to go to the cup.
"We have a long way to go so it's not about three or four blokes but all seven."
Refreshing physically and mentally was imperative.
