I suppose this is where receiving training from an experienced
instrument pilot and instructor would far surpass receiving training
from a time-building instructor.

Not really. What makes you think that an experienced pilot or
instructor necessarily has any higher level of knowledge regarding
obstacle clearances on IFR departure procedures? Opinions, sure, but
knowledge?

Point two is that students only retain a small fraction of what
they're taught. Even if your instructor had understood the sublties
regarding ODP's, it's not likely that you would have digested them in
their entirety.