Yeah, sort of.
This would be my preferred phraseology, once you’re “asking”: I have logical reason (Talmudic-based) to prefer the approach which rejects the concept of gilgulim. However, I am cognizant of the fact that the majority of classical sources accept this idea, and so I cannot say that I have an inherent problem with the concept.
Its not disrespectful to any other source to agree, for whatever reason, with R’ Sadya.
It really is foolish, I believe, to think you can reject the mainstream of Jewish thought.
Reminds me of an incident recently where someone referenced a Kuzari. I said, wait a minute, Rashi, Rambam, Ramban and probably many others say differently ? So the fellow says, yes, the Kuzari shows how they’re wrong. Huh ?
I hear the Kuzari’s position ? Fine. I therefore reject the position of these Rishonim ? No. We have a machlokes rishonim. We consider them two mehalchim which to us (barring psak, when relevant) are both Torah, and deserve our study and respect.