The Light Blues began in incredible fashion, leading 2-0 inside nine minutes before passing up a number of opportunities to extend their lead before the Bairns hit back in the final 20 minutes.
Speaking to RangersTV.tv, Weir explained: “Ultimately, it was disappointing to lose the game, especially on reflection having been so far on top for large parts of it.
“We scored a couple of goals early on and probably should have added more. Not to have the game out of sight before they scored was disappointing, and then when they scored, it changed the game and they had a little bit of pressure and the result wasn’t one that we wanted.
“There were positives within the game, but we have to get back on track now starting on Saturday.
“I thought in the first half in general we played really well and created numerous opportunities, and there was lots of good play and good movement.
“There were a couple of touch and go offside decisions which, allied to some of our finishing not being as clinical as we would have liked, meant on another day we could possibly have been three, four or maybe more up.
“The goals we did score were excellent goals though.”
But the fact of the matter remains that Rangers lost an important game of football, and while naturally unhappy with both that and his side’s defending, Weir insisted the collapse at the back must be taken in isolation.
He continued: “We’ve watched the game back a few times and had discussions, and there are certain things we could have done better and certain things we need to learn from.
“That’s part of the process as always, but it’s important too you don’t draw too many conclusions from a 20 minute spell when you look back at the whole season.
“We conceded three goals in 20 minutes while before then we conceded three goals in nine games. While we have to look at it and learn as we have done, I think we also have to look at the big picture and realise we’ve done a lot of things well too. Getting the balance right is important.”
Weir also joined boss Mark Warburton in defending their use of substitutes after there was criticism in some quarters over them.
He added: “A has been said about the substitutions, and I’m not really sure where a lot of the things I’ve read have come from.
“The way we substitute players and when we substitute players is an open secret, and again, I don’t think you can draw too many conclusions from one game and start making up facts from it.
“Overall, we have had a really positive impact and I think people are drawing conclusions in the wrong manner.