Their opponents on Saturday Northampton Saints did play and recorded a 15-11 victory over GUINNESS PRO12 side Scarlets.
But Blair believes Glasgow's postponement could hand the Warriors the advantage.
"It is difficult to pass it by like that but we have to do that and try and move on. We have to focus on this game. Guys in the squad were upset by it but we have to try our best to move on," said Blair told the Scotsman.
"Clubs and countries have gone about things in their own way, and England's football game with France went ahead last night. That's the message which is being given out: we need to move on now and focus on our game against Northampton.
"I can't speak for other individuals but, from my point of view, it was a distressing weekend for a lot of people but we were outside the city and it was something we have been able to shift our focus from.
"We will be seeing this as our first game in Europe all over again. We are charged up to get going, we are enthusiastic. We were ready to go last weekend. Now the first game is a home game and that is a big advantage for us.
"We trained on Saturday afternoon on a 3G pitch [in Paris] so we had a blowout to make sure we started right for this week. You move on quicker in terms of preparation because you don't have to review the game. We are ready for Northampton now. We have put in the preparatory work and it puts us in a strong position."
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