That video was a good hype thing and I enjoyed watching it but it didn't really alleviate much of my concern about the difficulty. I was kinda hyped when they were saying they were going to make monsters after act 1 faster/have more attacks but they didn't really stress that this would happen in NM/Hell/Inferno vs normal so still I'm not sure it'll be too different than d2, which kinda already did this. (gloams in a3 and up are more difficult enemy patterns to cope with than say a1 zombies)
Beyond that it was a bunch of testamonials of guys sayin they got their ass kicked (who cares) followed by "we're adding more mods to unique monsters as the difficulty goes up." (Oh okay that's different from Diablo 2 how.)
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Even if they just came out and said something like they were changing their approach to difficulty and the big concern with hell/inferno wasn't going to be breaking immunities and just killing/surviving in the first place with crazy fast/complicated enemies and you're going to need to use wisely evasive skills and such to survive even when you're able to damage things fine I would've been reassured. But sounds just like more of the same from D2 (based on this video)
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No problem!
This is a cute and pop genocide of love!