It's probably not that bad really. In any other season they'd probably be only 5-6 points behind Liverpool. Its just that Liverpool have raised the bar so high this season and won every game except one.
Even if Liverpool were only on course for 95 points we'd be 8 or 9 behind them and on course to finish about 15-16 behind. Liverpool upon checking haven't raised the bar but we have dropped our standards dramatically. In our 17/18 season we actually had 58 points after 20 games, something Liverpool are only on course to match with a far worse goal difference.
We aren't in the crisis or the embarassment many make out but lets call a spade a spade, we've been piss poor by our own high standards. 7 or 8 years ago this might have been borderline title challenging form (because we win so many games and rarely draw so it would cover the losses). Nowadays hitting low 80's in points is miles away.
But we are likely to lose 10 games + this season. Pep has only lost 17 league games in english football, its quite likely he'll finish this season with as many losses as his previous 3 seasons combined.
Also to note is of the 17 losses, 8 have come over the christmas period, which shows he refuses to adapt his tactics to the schedule.