Did Brandon retcon Mraizes vacation history?

[Toaster Retribution he/him]

So, in WaT, we learn that Mraize has never been to other planets. He says so himself, and there is no reason for him to lie, nor to hold anything back from us readers since he is now dead as dodo. However, there are WoBs that clearly state that Mraize has visited other planets. So, did Brandon forget about this, or change his mind or is he actually hiding something? 
 

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Arthur Dent (paraphrased)

Is [Mraize] a worldhopper?

Brandon Sanderson (paraphrased)

Yes, he's been to a few planets, highly supervised by his babsk.

Arthur Dent (paraphrased)

So what planet is she from?

Brandon Sanderson (paraphrased)

Well, that's kind of a hard thing to say. She has 3 planets she's "from". For example, she's living now on Roshar, but then she's from a different planet, but that's not a planet that her people are from.

Arthur Dent (paraphrased)

So there was a mass exodus to that planet?

Brandon Sanderson (paraphrased)

Not exactly. If you were to find a Japanese American, where would they say that they are from? Her people did not have a mass exodus.

Arthur Dent (paraphrased)

Have we seen mass exoduses before?

Brandon Sanderson (paraphrased)

Yes, there are some in the cosmere. There's a mass exodus that is mentioned in one of the interludes in [Words of Radiance].

Footnote: Zas678 intially reported that the mass exodus was discussed in The Way of Kings, Arthur Dent later corrected this as Brandon actually referred to Words of Radiance.

Orem signing 2014 (Dec. 6, 2014)

 

 

[alder24]

5 minutes ago, Toaster Retribution said:

So, in WaT, we learn that Mraize has never been to other planets. He says so himself, and there is no reason for him to lie, nor to hold anything back from us readers since he is now dead as dodo. However, there are WoBs that clearly state that Mraize has visited other planets. So, did Brandon forget about this, or change his mind or is he actually hiding something? 

Mraize said that he traveled through Shadesmar so technically speaking he visited other planets - just not in the Physical Realm. WaT ch 134:

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“I have traveled Shadesmar,” Mraize said, staring—with what she thought was genuine longing—at her Lightweaving. “I have met aethers and dragons. But no, I was never allowed onto another world.”