Do you think the seed is still okay?

I transplanted a seed that sprouted with about a inch inch and a half of root from a solo cup with crap soil from my last grow many months ago. and i transplanted it into brand new organic soil in a bigger pot. i hope i didnt shock the root or something. i didnt even touch the root really just lightly grabbed the seed that was still attached to the root that was coming out of the soil and moved into the other pot with new soil. will this be okay? its my last seed just worried.

As opposed to leaving it in the solo cup with the crap soil ?
So the answer is either
A : Your better off translating it in better soil in a bigger pot or
B: It was better off left in the solo cup with the crappy soil.