Ok.. after doing a bit more searching on the subject, it looks like I was under the wrong impression about ranking (due to the naming of the rank required to get the Claymore). While Fabled sounds like an absolute top tier ranking, it's apparently just above average.
According to Gigz at least, the rankings in Glory go as follows, from lowest to highest. Guardian < Brave <Heroic < Fabled < Mythic < Legend. If that's accurate, it would work out to about the top 33% of players if assuming an equal split among rank (which isn't typical for a ladder system but this is just to give an idea).
That should be much more achievable as a solo player or a casual group than I originally thought.
According to Gigz at least, the rankings in Glory go as follows, from lowest to highest. Guardian < Brave <Heroic < Fabled < Mythic < Legend. If that's accurate, it would work out to about the top 33% of players if assuming an equal split among rank (which isn't typical for a ladder system but this is just to give an idea).
That should be much more achievable as a solo player or a casual group than I originally thought.