Summing in the Ivory Labyrinth

[Popupjoe]

Okay I posted this on The Herald of the Ivory Labyrinth page and got nothing. Maybe nobody saw it? Can anybody help?

Spoiler:

If Planar Travel is shunted to a handful of locations Like the Arrival Plaza in the ivory Labyrinth does that also mean summoned creatures would go there as well instead of their intended spot? How does this work?

I say no but I player says yes.

[magnuskn]

You are the GM, what you says goes. However, to address this in a way which comes from the rules, the entire is divine morphic, i.e. Baphomet decides how it functions. If he says that demons can teleport or can be summoned, then that's how it works.

Moreover, the text in the module doesn't talk about summoning at all. The module authors are normally very good when it comes to mentioning such details.

[Popupjoe]

So it is vague you agree? I allowed summoning not summing as the title here suggests but my player made a good point i thought. Anyway to get the writers opinion? Did anybody else deal with this?