Is that not only natural when you've just recovered from having the crap kicked out of you? Harpuia was shot, whereas Zero landed in the freaking missile.
The difference is that Z1-2 is reinterpretation of game facts. Whereas Z4-ZX is reinterpretation of a context questionable image, and developers being unsure in interviews about what the hell is going on. Only the implications of the aforementioned context questionable image can be remotely considered as part of continuity.
The absence of something from continuity is as much part of continuity as its presence. In that regard, it's not Z4-ZX but rather Z3-ZX, spanning three games rather than two. For no reason is anyone's mortality in question during Z3, and Z4's existence says that it needs no further expansion. That's why it's a retcon. You're saying that it's not, because in asking whether or not they survived there was no solid answer. The problem is, there was no reason to ask that question in the first place.
I'm getting a far less unsure vibe from that Q&A than you are, as well. They state that they passed on a Z3 showdown because they did not want to dispose of the Guardians, and in addition, taking the word "Perhaps" as indicating their possible death only works with the quote out of context, since the previous paragraph stated that despite the Shitennou being Zero's rivals, "there is no way Zero can handle it [Operation Ragnarok] himself." The Guardians being dead was simply not up for discussion.
[spoiler=repost, for memory-refreshing and all]===<< Letter Introduction >>=============
I played Rockman Zero 4. Why weren't the Shitennou there!?
I really like the Shitennou! No, love the Shitennou!!
It's because the Shitennou are in it that RockZero is so interesting.
Even so they didn't appear this time, but why?
So please allow the four to appear in the next game, I beg you!!
Bring Phanto back to life please!!
Letter from Shimizu Aoi-san
=========================
Site Staff: Following the "EXE Corner" the "Zero Corner" will start. To answer the questions this time, the Zero 4 creation team.
General Creation Team: Thank you for your passionate support of the Shitennou.
Truth is at first we had planned for Zero to have his final showdown with the Shitennou. But for us, the creation staff, the Shitennou were very unforgettable strong characters, so some of us said "It would be poor for them to be defeated" and so it came out like that in Rockman Zero 3.
And then in Zero 4's continuation, this time with Vile's Operation Ragnarok there is disasters all over the world. And so, the Shitennou, however much rivals to Zero, there's no way Zero can handle it himself.
It's because they were "Warriors born to protect humans". Perhaps they were also in other places doing the same and probably fighting to protect humans.
To be frank, it's a regret we have after Rockman Zero 4 that we didn't put the Shitennou in, but now we know their popularity based on all the fans' support. We can't promise, but if there is a chance we'll make sure the Shitennou will take part in some way sometime for the users.
Site Staff: They had that kind of talk during Zero 3... Thank you for the precious talk. We'll enjoy when the day the acticity involving the Shitennou comes.[/spoiler]
The issue I have here, is that you're viewing Z4-ZX as equal to Z1-2 in the scale of retroactive continuity. The Guardians' death is relatively minor compared to what how things changed upon Z2's release.
I never said they were equal in scale, only that they are equally valid. There's a difference. Surely Elf Wars has a larger impact, but it doesn't make the Guardians' death any less retroactive.
Leviathan's uneven foot
It's called a "step", which involves placing one's feet at uneven elevations, either for the sake of moving to different elevations where no grade is available, or simply because adequate foot space does not exist in a single elevation.
They're standing in ruins.
I just don't see how it can cause the whole ankle and foot to vanish as with Phantom.
Save for the lack of gold trim, which is easily glazed over given how small/dark a space Phantom's feet occupy, nothing in the image says that Phantom's feet are vanishing. The effects could easily be supplementary.