Is the 17th Shard (in world) breaking their own strictures?

[Juanaton he/him]

If the 17th Shard is supposed to be non-interventionist, like Frost, how do they justify trying to catch Hoid and make him stop intervening? Isn't that an example of them intervening?

Also, am I correct in believing the 17th Shard to be non-interventionist?

[Calderis he/him]

They do seem to be somewhat hypocritical. 

Quote

Questioner (paraphrased)

Demoux. Him, also being in the Interlude. How is that one...

Brandon Sanderson (paraphrased)

He is part of a group called the Seventeenth Shard. [They] are is cosmere-aware and travel around the planets and have a kind of pact of non-intervention. Which they aren't doing a very good job on, because they brought the common cold to Roshar.

Questioner (paraphrased)

How did he actually find out about this?

Brandon Sanderson (paraphrased)

I will give you [a RAFO card], because I will answer about the Seventeenth Shard eventually.

Questioner (paraphrased)

*inaudible*

Brandon Sanderson (paraphrased)

The Seventeenth Shard will have a big role to play in future books.

Questioner (paraphrased)

Is Hoid part of the...?

Brandon Sanderson (paraphrased)

Hoid is not part of the Seventeenth Shard. They're trying to chase him down.

source

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Questioner

The Seventeenth Shard—is their purpose limited solely to tracking down Hoid? Or all Worldhoppers or is it something grander than that?

Brandon Sanderson

No, they have other stuff. It is grander than that.

Questioner

He's just one of many priorities?

Brandon Sanderson

Yes. They are very worried about what he's going to be doing.

Questioner

But there's others they're worried about as well?

Brandon Sanderson

Yes... They have a task, they have goals, and they are worried that he is going to be [at] cross purposes to them, so is trying to hunt him down.

source

 

[Wandering Investor]

The true goals of the 17th shard are unknown, but it is known that they want the shards to stay away from each other and frown upon intervening. More specifically, they believe intervening will cause problems no matter the intention, especially messing with the shards. Enter Hoid: although intervening to stop Hoid comes with risk, Hoid's continued intervening present a far greater threat. Especially on Roshar where his actions could upset the balance of the shards.

[+hwiles]

4 hours ago, Juanaton said:

If the 17th Shard is supposed to be non-interventionist, like Frost, how do they justify trying to catch Hoid and make him stop intervening? Isn't that an example of them intervening?

Also, am I correct in believing the 17th Shard to be non-interventionist?

I think the subtext so far with the 17th shard on Roshar is that they are trying to stop Hoid from doing something that will free Odium. Odium is the king of pre-emptive and proactive intervention and widely considered a menace. In his letter, i believe Frost implies Odium's containment is a good thing and Hoids meddling is far more likely to quicken his escape than anything else. Hoid is a meddlesome rogue agent, but he's got far less blood on his hands than Rayse, so containing Rayse takes priority, even if that means confronting Hoid or burning Roshar I suspect.