Inconsitency in step development guidelines

[koral--]

The guideline in this repo says:

Based on our experience the pipe character (|) works really well as a universal separator character, as it's quite rare in input values (compared to ,, ;, = or other more common separator characters).

https://github.com/bitrise-io/bitrise/blob/master/_docs/step-development-guideline.md#input-naming-convention
And the same rule applies to the outputs.

However, the guideline on devcenter says:

expect the values to be provided as a newline character (\n) separated list (for example, first value\nsecond value).

https://devcenter.bitrise.io/en/steps-and-workflows/developing-your-own-bitrise-step/developing-a-new-step.html

It seems that all the steps use pipe as an output separator in fact so devcenter is incorrect?