Irori... is not at all sure she's correct.
But the problem is, it creates something like doubt within Him, about the usefulness or counterproductivity of intervening. It is not even in His nature to secretly resolve to save the multiverse if Carissa Sevar fails, because then it's not really her task, is it? Irori does not do that sort of thing; and also, that force above Pharasma might not look kindly on it, if this task was meant for Carissa Sevar alone. He's not sure of any of that, but it's all too possible, He thinks with despair for the world / glorious exultation for Carissa Sevar.
And if Irori is not very very sure, then it really is not in His nature to take the brightest star of cleverness and determination to shine on a dozen watched planets over a hundred years, formed without the slightest note of deference to Irori Himself, aspiring to ascend for reasons that have nothing at all to do with a Vudran social expectation that this is what monks are supposed to do -
- and help her when she told Him to stay out of her problem.