Scotland had started the game as narrow 11/8 underdogs to end their 16-year losing streak in Cardiff but trailed by 14 points after just 13 minutes.
Gareth Davies scored the first try, intercepting an Ali Price pass, but it was the score by Leigh Halfpenny six minutes later that left Wales legend Davies scratching his head over the defending.
“Look how narrow the Scottish defence is,” Davies said.
“They’re so so narrow.
“[Winger Byron] McGuigan is calling for help on the previous play – the good thing about it is [the Welsh players] are all lapping around – but then Finn Russell makes a decision and the pass beats him.
“Huw Jones goes in too and it’s an easy finish. They were so so narrow. I can’t really understand the defensive position.
“Here they’re narrow but previously, they were too wide. But Wales work so hard off the ball.”
But Davies did not reserve his criticism for the defence, hitting out at the forwards for failing to punch their own holes in the Welsh line and scrum-half Price for his intercepted pass that led to the first try.
“They have to go wide. Scotland have been forced wide because they’ve no ball-carriers,” Davies added.
“None of the back row are taking it up so their option is to go midfield and it’s difficult but they’ve been forced to do it.”
He added: “When Price gets the ball, Davies takes one or two steps, he’s onside, he’s read it and it’s such an easy intercept.
“What a counter-punch because Scotland were all over them.”