First, the linked article says it could take 3,000 half hour episodes, (1,500 hours, or 200 days now that he's doing this full time), not 22 years (maybe he plans on going slower to space out the episodes, but that's not the same thing).
Second, he could always choose a faster mode of transportation, no? It may not be the point, but it is enough to make me think this is far less cool than other minecraft accomplishments we've all seen and loved.
And it looks like the Far Lands were removed/ made unreachable in an update at one point? I guess he must be playing an old version.