It isn't bollocks any more than your post is.
You're choosing to compare the teams over a 10 week period, in so doing, completely ignoring the period immediately before that where we were considerably better than Spurs (as you say, 8 pts better). Before we played Spurs you probably thought we were the 'form' team because of what had gone previously. They then deservedly beat us at their place.
You can't compare teams over such a short period and any assessment of improvement is probably wide of the mark, based on too few results and fuelled by media bollocks. Fact is, we're 25 games in and they're 1 point in front of us. That's the only stat that matters.
I've no doubt that you, pavel and the other doom mongers on here think you're right but the implied probabilities are City 45 % chance of winning, Spurs 27%. That doesn't mean you're wrong but it means you're probably wrong.