Why didn't Adonalsium's death destroy the Cosmere?

[Onironte he/him]

So, a simple question: Events involving one or more Shards being Splintered, merged, or anything of the sort usually come with major consequences.
 

Spoiler

For example: brutal time dilation at the moment of Odium’s Ascension, or half the Threnodite system being damaged when Ambition was Splintered…

Ado’s death was something along the lines of Ambition’s, but at least sixteen times more powerful. If we consider that Ado’s power was qualitatively greater than a Shard’s, not just quantitatively, then the Splintering should have been enough to burn out the entire Spiritual Realm, or something equally massive.

Why didn’t it? The only explanation I can think of is that using the Dawnshard’s Splinters is more effective than simply forcing a Shard to Splinter by brute force. Instead of fragmenting power violently, you turn the very intent or nature of that power against itself, making it divide on its own rather than tearing it apart externally.
But even this doesn’t seem like a very satisfying explanation. The sheer amount of entropy that such a release of Investiture should have created is tremendous. 
What do we know? & What do you think?

[#1 Taln Fan he/him]

1 hour ago, Onironte said:

So, a simple question

From Wind and Truth ch 113:

Quote

A clash of gods could be a terrible, terrible thing. In that moment, I learned something incredible. I knew why Adonalsium, at the end, had not fought us.

The quote pretty much answers that, it's because Ado didn't fight back. If it had, it probably would've destroyed the Cosmere or had huge effects.

[Argenti he/him]

3 hours ago, Onironte said:

So, a simple question: Events involving one or more Shards being Splintered, merged, or anything of the sort usually come with major consequences.
 

  Reveal hidden contents

For example: brutal time dilation at the moment of Odium’s Ascension, or half the Threnodite system being damaged when Ambition was Splintered…

Ado’s death was something along the lines of Ambition’s, but at least sixteen times more powerful. If we consider that Ado’s power was qualitatively greater than a Shard’s, not just quantitatively, then the Splintering should have been enough to burn out the entire Spiritual Realm, or something equally massive.

Why didn’t it? The only explanation I can think of is that using the Dawnshard’s Splinters is more effective than simply forcing a Shard to Splinter by brute force. Instead of fragmenting power violently, you turn the very intent or nature of that power against itself, making it divide on its own rather than tearing it apart externally.
But even this doesn’t seem like a very satisfying explanation. The sheer amount of entropy that such a release of Investiture should have created is tremendous. 
What do we know? & What do you think?

Well, in some ways, Ado’s death did destroy the cosmere. His death fundamentally altered the laws of investiture, and changed everything across the entire cosmere.

But regardless, as Talnfan said, the reason everything didn't explode is because Ado didn't want to kill everyone and everything.