Chapter 5 Science Lab endings described on the wiki which seem to be different or absent in this 2021 version?

[Dragon]

So, I was reviewing the wiki to try to make sure I have done all main chapter's endings for this 2021 version.

And it seems I did get all the main chapter's endings that are available in this 2021 version.

But, the wiki lists an ending that apparently is not available in the 2021 version, and also another ending that has apparently been changed to what seems to be a much worse version, story-wise. So I'm making this thread to try and find out what is going on with these matters.

For the first matter, specifically, I'm talking about the ending described at this link:

https://corpseparty.fandom.com/wiki/Corpse_Party_(PC)/Endings#Wrong_End_1_%E2%98%853

According to the events of the text given there, the story continues after the Anatomical Model slays Yoshiki, with Ayumi meeting the others on the third floor, and giving them a speech about what happened to Yoshiki, and then later Ayumi does the ritual to return the real world and gets a horrific ending after that.

But in the 2021 version "Wrong End 2" in Chapter 5, it seems like a much more abbreviated and worse version of that same ending. In the 2021 version, the story ends right in the Science Lab, and Ayumi's fate is unclear. All she does is scream "Nooo" after the Anatomical Model slays Yoshiki, and she never does all that other cool stuff like giving a speech to the others about what happened to Yoshiki, and returning home, and having a horrific ending after she returns home.

So, my first question is: what's up with that? Is the 2021 version ending actually supposed to be a truncated & much worse version than is the much-better version of that seemingly "same" ending that is described in the wiki?

If yes, then why did they decide to make the game worse in the 2021 version, instead of just copying & pasting that great ending ending again exactly as the wiki describes it, rather than to go out of their way to edit the ending in order to delete most of the cool parts out of it?

Moving on to the second matter, in the 2021 version, I could not find any way at all to perform the ending as described here:

https://corpseparty.fandom.com/wiki/Corpse_Party_(PC)/Endings#Wrong_End_7_%E2%98%859

The instructions say to "get caught by either Yoshikazu or the Anatomical Model" and "Let Yoshiki escape the science lab."

Except, it seems like there is no way to actually do that in the 2021 version, because if you do the first instruction and get caught, then the game automatically triggers the wrong ending that I just described where
Yoshiki burns the Anatomical Model, and then it revives and slays him.

And whilst that is happening automatically, as far as I can tell, there is no possible way to "Let Yoshiki escape the science lab," like the wiki says you can (albeit the wiki is probably talking about a different version).

So, my questions about this second matter are: did they delete this ending out of the 2021 version? If so, why?

And if not, then how do you perform this ending, exactly, in the 2021 version?

[Saralene]

Chapter 5 in general is a little different between the MAGES. version and the GrisGris version, simply because the MAGES. version of Chapter 5 was completed and released first (on PSP) and then the GrisGris version got extra polish and endings (hence also the very different BGMs in some spots of Chapter 5) and was released with Tooth as a bonus.

I think some endings are still exclusive to the PC version and never made their way into any MAGES. version after the PSP version? They added the bug pit ending but I think some of the others remain exclusive due to the lingering differences between the two versions... I'm not sure off the top of my head anymore, to be honest, but I think that's the case for this one in particular.

The Wiki has different pages for each version of the game. The page closest to this version would be this one: https://corpseparty.fandom.com/wiki/Corpse_Party_(3DS)/Endings