Tet has long since solved what one might call the game of "first-order" god-politics.
It only took Him a few minutes. It's not complicated.
All the real gods have solved it long ago.

Second-order god-politics is unsolvable even in principle.
It contains sub-games isomorphic to the halting problem.
But first-order is usually enough for an approximation.

Given a study of first-order god-politics, one would expect that, if a new Chaotic Good god is introduced to the equilibria, then local reality would end up, overall, slightly more Chaotic and more Good.

One would anticipate this taking effect in the form of some marginal Chaotic or Good regions of creation, call them constituencies, becoming more stable and long-lasting.

Likewise, one would expect marginal Lawful Evil constituencies, the kinds of places barely held together in the first place and particularly susceptible to the new god's angle of attack, to destabilise.

From Tet's perspective, and from the perspective of those gods he has purchased information from, Cheliax seems like the kind of Lawful Evil constituency one would expect to lose, given the addition of Tet.

It's not that He didn't expect Asmodeus would make Him work for it. It's just that it wouldn't forever continue to be worth the intervention to keep. Eventually Asmodeus would decide to pick better battles where His resources trade more effectively than here.

Possibly Tet has tried to say "GG" to this sub-game too early.

Possibly Asmodeus knows something about how winnable this fight is for Him, at certain parts of the intervention cost curve, that Tet from His perspective can't as easily see.

Possibly Asmodeus is just making a mistake, with some tiny fragment of His highly distracted attention.

Possibly Asmodeus is letting His pride force Him to make a move that game-theory says He shouldn't.

Or possibly, Asmodeus knows something not about how cheaply He can win, but about how valuable it is to His interests, that He does.

Golarion has problems with prophecy. Golarion has an Existential Threat to Creation chained within it.

It's far from the only such threat in existence.

There are plenty more outside the bubble, who can't make it past Immigrations.

There are others within Otolmens' purview to handle.

Still, Rovagug does seem a notable example.

It could be that this world is unusually important, for Asmodeus.

Tet thinks about it.

Tet wants to see where this goes.

Tet decides that He will increase His bid, here. Give slightly more of His divine energies to the fragment of His attention that watches Golarion.

And then Tet moves on, to continue at the other ten thousand simultaneous multipolar chess games that is Pharasma's Creation.

Iomedae will concur with Tet's reasoning.

It'll mean sacrificing hundreds of thousands of innocents on distant worlds.

But she'll raise Her bid too, by a fraction.

Abadar is disappointed.

Golarion appears now, to Him, less a place His interests can be cheaply brought to prosper.

He will lower His bid on this planet a substantial amount.

He will find some other world, where people can be honest and fair and straightforward. He will spend His energies there, instead.

And as they update their strategies and investments, the equilbria their actions create will move underneath them.

Interventions by yet other parties, not previously calculated as worthwhile given the likely future developments, will need recalculation. Some who found some seemingly unrelated inverventions suboptimal may now change their minds.

It's not a static system. The equilibria has been upset. It will not quickly settle back down.