Yes exactly, I don't really even see this as an application of the 'n degrees of separation' phrase/principle. Why did OP stop at Felix: who suggested they take the class, or whatever, you can keep going back as you say, the six here is completely arbitrary.
Someone doing something for you whom you met not at birth but after some stuff happened isn't 6 degrees of separation, it's just life.
Someone doing something for you whom you met not at birth but after some stuff happened isn't 6 degrees of separation, it's just life.