Missing the point? No. Disagreeing with the point? Yes.But you're missing the point of curation, part of the joy of a curated setting is the increased versimilitude from removing thematically redundant creatures and tightening the focus on the major components of the world. The Krynnish goblinoids and ogre races render orcs redundant and unnecessary. The tying of elves to Paladine makes drow ill-suited to the world. Adding them back in is a terrible idea, with no upside. Players should engage with the fiction rather than creating the same bog-standard D&D characters that populate the Realms.
Removing orcs and drow from the Dragonlance setting is curation, but it does not increase a sense of verisimilitude, IMO. It's weak-sauce world-building by subtraction, which is a pet peeve of mine. Even in a setting that I otherwise have a lot of love for.
IMO, orcs can be added back into Dragonlance without any real effective change to the setting. Their removal or inclusion makes no real difference. Orcs, hobs, gobs, and ogres are all not 100% identical, but they are all similar enough orcs would blend right in to the Dark Queen's armies.
The traditional drow story found in Greyhawk or the Forgotten Realms doesn't fit easily into the themes of the traditional Dragonlance story, IMO. But adding in a Krynnish variant of the drow would be an additive change that would not break the campaign. IMO, of course. Similar to how elves and drow in Eberron are not the same as elves and drow in Greyhawk and the Realms.
Curating creatures and player species for a game can help build an interesting setting that feels different from the standard D&D assumptions . . . but IME, DMs who rely on world-building by subtraction end up creating pretty standard D&D settings, just without orcs or drow or what-have-you.


