I'll post it here too, since a lot of people seem to suffer from recency bias. He's not cutting it in Europe, but neither is his team. He probably gets scapegoated this much because Spurs have no other players of the same level of quality, so therefore he's first in the pecking order. No man should be able to carry Spurs alone, so I think it's just lazy to blame it all on him.
This season in premier league:
Scored against: Chelsea, City, Liverpool, Arsenal, Chelsea, Newcastle, .
Assisted against City.
Only two big matches has he not scored in: Arsenal (home) and Man Utd (away)
That's 7 teams he has showed up for and only 2 he hasn't.
So he clearly does show up, and he is able to carry them at times