Yes he is as if you stripped the season down, him and Lukaku and Gana (to an extent) have carried the side.
For the things he can do wrong, he also gets it right. He had a shocker against Chelsea yet put our strikers through in the first 10mins and we hit the post, we also were solid for 60mins. Same today, he still did more in terms of applying pressure and building attacks in 45 mins that the whole team in the 1st half.
He gets rated against De Bruyne, Silva etc yet the difference in a lot of games is for any poor game they have, they'll tee up a goal put away by class. We have Valencia, Lewin, Mirallas.
I don't question that he has faults but for the most part a large chunk of the fanbase want him gone and replaced like he's the problem, when he's not.
As for the Spurs link, it makes perfect sense. They only have Eriksen as a creative outlet, they need more squad depth. Ross will be cheap for a player of his talent, he's proven in the prem and consistent (2 season, back to back 8/9 assists). So why not.