Maybe I'm wrong but I don't see that pre-2011 Explorer owners could possible like 2011 Explorer.
Why? The previous generation Explorer had very poor ground clearance and an IRS. While it had low range, it wasn't exactly very capable offroad, nor were the majority of them purchased for that reason. It did have a reasonable tow rating when equipped with a V8, but like any midsized SUV (4Runner included), the relatively short wheelbase is not ideal for towing heavy loads.
The new Explorer has more room than the previous generation, is far quieter inside, has a far superior interior, and gets 20% better mileage. For the average soccer mom who drives a previous generation Explorer, the new Explorer is fabulous in comparison.
If you go over to the Explorer forum, you'll find some folks that, like me, wish the new Explorer had more offroad capability. But you'll also see many folks who just love the new Explorer.
Especially because Ford already has Flex with available AWD so people who like car like handling and minivan size bought Flex already.
The Flex isn't selling all that well, and it has no offroad capability. It is likely to be canceled before too long.
The new Explorer has very modest offroad capability, but more than a Flex, and its styling will appeal to a different class of buyers.
Each vehicle is basically a set of compromises. The compromises that work for you may not work for someone else. Yes, the 4Runner is far superior to the new Explorer offroad. For you, that's important. For most Explorer buyers, that's not. I'm sure there are some 4-door Wrangler buyers who can't imagine why people buy a 4Runner, as they consider it to be not capable enough offroad.