Celtic progressed to the fifth round of the Scottish Cup with a comfortable 3-0 win away from home.
Griffiths scored twice and Carlton Cole added another at Stair Park in the fourth round of the prestigious competition.
Former Celtic goalkeeper Bonner was following the match, and he has highlighted a negative from the display.
"The way they went about the game was 95% excellent,” the former Republic of Ireland has told BBC Radio Scotland. “The one slight disappointment was that Kris Commons did not get involved enough and was taken off."
Over the course of 90 minutes at Stair Park, hosts Stranraer had 36% of the possession, took two shots of which one was on target, and earned one corner.
Visitors Celtic had 64% of the possession, took 16 shots of which 12 were on target, and earned six corners.
Attacking midfielder Kris Commons, 32, started the encounter and played for 74 minutes.
Celtic will return to action on Friday evening when they take on Dundee United away from home in the Scottish Premiership.