You're right in Spurs players no doubt being happy. But you've got title winning players in your squad. If they don't start winning titles those players will leave to fulfil their potential.
In no uncertain terms, if Spurs fail to win something this season, this season will be classed as a failure. You've got the best team in the league and enough strength in depth. It's February 1st. There are three competitions on offer and 3rd or 4th place and no cup in hand at the seasons close would have to be seen as a failure.
Personally I think you'll win something this season. But if you don't, you've got a very talented group of players that will have to start thinking "If not now, when?". There will never be less completion than right now.