I actually just got done watching the video - it's nice, but it did get a few things wrong.
First off, he described how he's glad that ES:O will have first-person view because he likes to play it for immersion, being able to see his hands. The devs have, so far, said you will NOT be able to see your hands in 1'st person mode.
Secondly, he said you can "for the first time go from end to end accross Tamriel". That is not true for two reasons... 1) Faction locking makes it impossible to do, though I'm sure he just means to "explore it... but only on three separate characters...", but 2) Not all those zones are going to have everything area open and available to players, sounding like they're going to block-off sections of those lands.
Thirdly, he made an error saying that there are no cooldowns. While there are no "cooldowns" in the traditional sence, there are technically cooldowns via the Stam bar, which amounts to the same thing really - you can't use your abilities until your overall Stamina "cools down". He said it's weird that in WoW and other MMOs you forget how to swing your sword because of cooldowns, and that's not true - you swing your sword as an auto-attack in MMOs. Cooldowns are "special moves" you can do.

Fourth, a error he made that is actually a POSITIVE for ES:O, he mentions that he has no idea how kill-cams would work in ES:O because it slows down time in Skyrim. Obviously this guy plays an archer in Skyrim, because it does NOT slow down time in Skyrim for Kill-Cams. Only slows down time in Skyrim if you're an archer using the perk to slow time...
Fifth, and here's a big one for me - I've never heard that items in ES:O's Tamriel were going to be stealable and not locked-down as they are in previous ES games. That could be a double-edged sword if that's true... if it's true, a thief like me SHOULD be happy - but will be miserable if he goes to a town to steal stuff only to discover that nothing is there to steal as it's been ran-sacked over a week ago by 2,000,000 other thieves...
Apart from that, it's a decent video and does a good job helping bridge the game for many ES fans who are worried.