[Of course. Because Yuan had intended to wield the sword himself, and a mana infusion carries the risk to himself as well as Kratos. If it had failed, there would have been no one left to reunite the worlds, even if Mithos was dead.

[This understanding is a wordless transmission, followed by acceptance -- a sense of I wouldn't have blamed you if you'd had to choose the world, even though that ultimately turned out to be unnecessary. Kratos hadn't been convinced Yuan could talk Origin into helping if Yuan had wielded the sword, even though he would have had the best chance among the seraphim of doing so.]

I knew you were Renegade for a long time.

[It's not precisely a tangent. It might be an apology, of a sort, for making Yuan have to make that choice alone, long before he brought it to Kratos.]

I should have come to you earlier.

[Maybe they could have figured something else out ... or maybe it would have meant the end for the both of them, without Lloyd as a third option.]