Because they're now starting to get stick from rival fans and some reporters saying other teams have bad decisions and have to live with it, you'll see the narrative change (it already started on Monday with Carragher and Stephen Warnock saying exactly this) "it's not that we are demanding a replay but we just want action taken".......but the action they want taken is a replay.
I'd love them to get a replay, the fallout from it would be epic. Every game, every decision, every club would be demanding replays, threatening court action if its not done. They'll have opened up such a can of worms that it'll backfire on them.
There's no way Spurs would agree to it and rightly so. The officials have made a mistake l, not the for the first time and it won't be for the last time so suck it up like the rest of us have to.