How Likely is the Ammoninus Saccas connection from India to Plotinus?

I’ve heard this or something like it a few times but I don’t know enough enough about history or anything to judge for myself whether it is probable or just speculation without much force.

Wikipedia for instance says he is probably responsible for Indian (especially Samkhya) influence on Plotinus. How likely is this?

(I’m also curious about the Plato-India speculation but that is another topic.)