Two parts of the claim interested me. One was Faram's suggestion that the runes on the stone were carved by two different people:
The issue of why the length of the mile was changed from 5,000 feet to 5,280 feet in the late 1500's is an interesting one (you can read one take on it here and another here). Faram asks if the change was made "to mask all the measurements done before" 1592, hinting at a mapping conspiracy that could be easily overcome by a change in division.
One of the strangest ideas embedded in Faram's treatment of the KRS is that the number "1362" stands for both the year the stone was created and the distance measurement to each of the three corners of of the territory. Peculiar on its own (in 1362 a party journeyed to a point 1362 miles equidistant from opposing coasts and carved on a rock?), it becomes bizarre when you factor in Faram's claim that the lower portion of the writing, including the number "1362," was an amendment to the stone that was actually added after 1519. So the original stone was placed 1362 miles from the opposing coasts in 1362, but the number "1362" was not added until much later? And, coincidentally, the third (southern) point that was added to the claim was also 1362 miles from Inspiration Peak, even though it was an amendment? What good would the original marker have been without the date/distance recorded on it? And how would the carvers in 1362 have known that they needed to place the stone in a location 1362 miles from a point on the southern boundary of the territory which had not yet been defined? You almost need to invoke time travel to make the claim reasonable.
But these gymnastics don't matter, of course, since Inspiration Peak is not actually 1362 miles from the points that Faram specifies.
As usual, let me know if I've gotten anything wrong. I'm happy to fix errors.