Currently, Tottenham's position in the Premier League standings is right below Manchester United's position, which means that Tottenham's condition this season is much worse than the condition of other teams such as Manchester United. And if in the next match Tottenham cannot get points, either full or points from a draw, of course Tottenham's position will be quite close to the zone you mentioned. Because several other teams that are currently below Tottenham such as Everton, West Ham and Wolves sometimes they can still steal points from their opponents so they still have a chance to survive the relegation zone this season.
After Tottenham lost to Fulham they dropped to 14th place in the standings while Manchester United after winning the match against Leicester City rose to 13th place.
These two teams are indeed not in good enough condition so that many points are lost in vain when facing much weaker opponents, but in the last few matches Manchester United has again got much better results.
If Tottenham does not play better then it is feared that their position in the standings will drop even further and that could endanger the team.
Next week's match will be much more difficult as they will face Chelsea so the potential for another defeat is much greater.