If you don't want spoilers, perhaps not view a video you get to after reading "spoilers, you have been warned" beside the link to it and the spoiler disclaimer in the videos themselves? I personally don't see the problem.
If it's still too spoiler-y, though... what about the direct links without "spoiler" accompanying it to Nintendo's official announcement videos, which also don't contain spoiler disclaimers before the spoilers in the videos? Let alone the direct images, also containing spoilers and stuff, that are set to just immediately show without asking the user to click anything to show them (like spoiler lists or links)?
I really fail to see why less-spoiler-tape-plastered spoilers that are officially published/announced are better than more-spoiler-tape-plastered spoilers that aren't officially published/announced yet.