Hi Mark! About creature types. You’ve said before R&D is skittish about errataing creature types, but there’s been a lot of doing that anyway lately. Apart from changing the types of animal-people like viashino and cephalid to better synergize with their non-anthropomorphic counterparts, sloth was added to a few cards with Fallout, and now dragons from Kaladesh received the cat type. Efreet was phased out in favor of djinn, but not retroactively like naga - all the efreet cards are still efreet, but there won’t be new ones anymore. And lastly, despite both types entering the game around the same time, sloth gets added, detective doesn’t. Arboreal Grazer went from beast to sloth beast, but Dogged Detective stays merely a human rogue.  I’m fully in favor of the general direction that’s taken with creature types, and I also understand the risk of doing a lot of this in a game with paper cards. But the way it’s currently being handled feels extremely inconsistent, and the categorizer in me feels upset!
So, my question is: could you, or someone who is in charge of this, elaborate on the seemingly complex reasonings as to which creature type gets added, added but not errata’d, replaced, or phased out (perhaps in an article)? You’ve said before it’s not, but it really does seem scattershot, and I want to understand.Thank you!

Here’s the problem. It’s mostly done piecemeal which creates the inconsistency you’re talking about. Let me bring it up with the relevant people.

Hey Mark,I know errata is tricky and there are lots of reasons not to go back and re-type old creatures. I just wanted to throw in my two cents that Dogged Detective not being a detective drvies me *crazy.* It's in his name! And he was reprinted in a commander deck for *this set*!Once again, I respect the complicated balancing game your decisions are made within. Just wanted to share my feedback

It is a common request.

Was Dogged Detective from Karlov Commander not supposed to be a Detective or was this an accident?

It’s a reprint, and was not a Detective when it was originally printed.

I keep forgetting how design schedule works. I’m thinking about Dogged Detective. Was SNC locked when you were discussing Detective being a creature type in MKM?

Yes.

Is there a reason that Dogged Detective didn't receive a type errata to add in the new Detective type despite being reprinted in a precon for the set.

We consciously chose not to errata any old cards with Detective.

Dogged Detective got a reprint in the commander decks, but it's still not a detective. Why no creature type errata when it's even in the name of the card?

The choice was made to not errata old cards with Detective. We introduce a lot of new creature types, and we’re cautious with how much errata we do.