Wilkinson wasnt up to the task, but i was worried about the Vettori fight because i think he's actually a lot better than he's given credit for. And Izzy clearly won.
he's 2-0 in ufc and relatively new to mma. i dont see the holes you mention in his stand up, he's definitely better than he showed, but he's also light years ahead of most people in the division. Granted he did look lost when taken down, but I'm sure he will address that, and his lack of size/strength for the weight class.
both DC and rumble tried to get him into their camps to recreate Jon Jones' style, so those guys definitely know what they're talking about.
i hope he proves me right, but i absolutely understand why you'd be unimpressed based on how much hype he's had.