I'm inclined to agree with you. Marcus holds himself in Meditations to an insanely high standard of integrity. The ideal he emanates is intimidating. At the end of the day, all we can do is do our best, accepting our humanity along with all the feelings that go with it, as you say, while challenging ourselves to continually improve as new opportunities arise. Sometimes the hyper-rationality can come across as overly analytical and judgmental.
I would also like to grab a beer with Shameless Sensei someday :p