@Piyush123
That FAQ from the publisher is BS.
If you go to zeroscans and check the comments for the chapters 251 and a bit before that you will get some info from the translator that it is different in the novel version.
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According to the translators:
In the novel version killing the most beloved person is the condition for the eldest disciple to even start to learn the black warrior's technique.
So in the novel when Lin Jie visits the sword hall all the disciples have already been dead and turned into puppets for a long time.
Hence it was impossible to save them from the start.
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However for whatever reason this was changed in the manwha version to this crap where Lin Jie can be stalled by just 4 disciples (turned into puppets) in chapter 251.
And that does not make sense.
The part about delaying Lin Jie with a powerful formation and 2 elders might be believeable.
But stalling Lin Jie with just 4 disciples in chapter 251?
Surely not.
And oh wonder, the "FAQ" does not mention that part of chapter 251 in any way.
Why?
Probably because they cannot explain that either.
So basically the publisher most likely demanded the author to make a change from the novel version in the story of this arc and had it changed to this bs.
And now they try to justify that even though it makes no sense.