I made an exception for clubs and greatclubs because of shillelagh users, however.
You should also make an exception for clubs and sickles in the hands of monks, since they don't care about the normal attribute or damage, and there are thematic reasons to want to use them (any silat, escrima, arnis, or similar practitioners might jump at the chance to get to 2wf using paired sticks, for example).
I’m surprised halberd and glave are so low. I suppose PAM isn’t as ubiquitous as it’s often made out to be.
PAM seems to have drifted to PAM with spear as the primary usage, but also I think the whole PAM+GWM+sentinel combo with a halberd or the like sometimes ends up in the 'yes it is an optimal build, but people will roll their eyes if I bring one out' territory.
To be fair, it's obvious Glaives as we know them don't exist on Krull. Or Thra, for that matter:
It's also a word that just sounds cool and I can imagine it might have been used even if, instead of a completely different weapon, it instead meant something else entirely.
Trident is somehow worse than javelin, yet it is martial weapon and javelin is simple. Shouldn't trident be d8 damage?
Personally, I think trident should be rolled up into one-handable spears (and then they systematically decide what they want to do with spears in general*).
*1h spear with PAM and shield is a way to make what IRL was a perfectly good military weapon viable for a martial character to regularly use, but it seems like the most convoluted and unsatisfactory way of doing it.
Clubs and greatclubs also have a PC role of when you are escaping being a slave/prisoner and need to come up with improvised weapons.
I think that falls into what was meant by not a pc weapon -- not one you choose for your character when equipping yourself (once the various cost differences between the weapons becomes trivial), much less making a build around. All weapons and armor work well for the role of things you use when nothing else is available (same reason for padded armor and scale mail and such).
Okay okay, barbarians don’t generally use bows but my point remains the same: if each class didn’t have such a large pool of weapons to choose from maybe lesser picked weapons might get more use if they’re the only tool to fit a particular role
I mean, it certainly is true that back in TSR A/D&D days, clerics could only use a subset of weapons and people found ways to make that work. At the same time, 5e has so many workarounds (multiclassing, shillelagh, cantrips instead) that most of the people who might get squeezed into a narrow subset will instead simply not use weapons (or, like shillelagh, not use their normal stats). Add to this that most non-(life/war/tempest) cleric characters without martial proficiency will likely have a 8-10 str and as high a Dex as they can, and the incentivization structure again goes every which-way but where you intended.