Quote Originally Posted by EorzeaWanderer View Post
The intention was never to have them become 100% drops, and this was the case with the other Nier raids as well.
Except in 5.5 the first two raids also had a patch like this, with identical wording, and they were changed to 100% drop rate.

Given that the wording on the two patches is identical, it implies the same thing should have happened here and that because it didn't, it's probably a bug.

5.5 patch notes:

The following items will now appear in a treasure chest allotted to each party of an alliance when undertaking the Copied Factory:

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Pod 054
Pod 316
...
The following items will now appear in a treasure chest allotted to each party of an alliance when undertaking the Puppets' Bunker:

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2B Automaton
2P Automaton
...
5.58 patch notes:

The following items will now appear in a treasure chest allotted to each party of an alliance when undertaking the Tower at Paradigm's Breach:

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Smaller Stubby
9S Automaton
...