Here are the last few Maran paladins with PBFs with the final cabal rank of each, # hours when inducted, # hours when maranated (or deleted if not maranated), rank when maranated, # of pks when maranated (or deleted if not maranated):
Drogdenbaryd, maran, 25 hours, 195 hours, level 51, 24 pks.
Aranohl, squire, 7 hours, 103 hours (deleted), level 51, 34 pks.
Werthius, maran, 33 hours, 129 hours, level 51, at least 22 pks (actual value not recorded on PBF)
Dracovius, maran, 39 hours, 174 hours, level 51, 14 pks.
Baelyron, squire, 93 hours, 136 hours (deleted), level 45, 22 pks.
Salmt, maran, 26 hours, 191 hours, level 51, 10 pks.
And here are the same stats for some of the more recent deathful and semi-deathful paladins:
Kemrin, maran, 14 hours, 64 hours, level 33, {not on PBF}
Garwern, maran, 28 hours, 109 hours, level 51, {not on PBF}
Zaknifal, maran, 22 hours, 94 hours, level 34, {not on PBF}
Morin, maran, 31 hours, 108 hours, level 41, {not on PBF}
Sarien, maran, 32 hours, 127 hours, level 51, {not on PBF}
Tanion, maran, 29 hours, 74 hours, level 37, 25 pks.
Caerdryn, maran, 44 hours, 184 hours, level 51, ~26 pks. (Not listed exactly on PBF).
So 4 our of 7 got maran in the 33-41 range. Admittedly not super common, but not really unheard of either. Of course two of those were Jalim.