There was a shot from Kane. De Gea had to dive for it. Not particular full stretch but what strikes be is the ability to save and clench hold of the ball firmly in mid air and landing with the ball still firmly in grasp. This is something beyond Pickford. He would have parry it without thinking where the ball lands next.
I am not doing comparisons between De Gea and Pickford I am just pointing out that De Gea's saves against Spurs were expected saves and nothing special at all.