[NotPractical]

Why can you guarantee that?

Also, this article was written in November 2018, and here's what it says:

> the battery can be individually replaced in the new MacBook Air [...] In all other MacBook and MacBook Pro models with a Retina display released since 2012, when a customer has required a battery replacement, Apple has replaced the entire top case enclosure, including the keyboard and trackpad.

This implies that, at least from 2016-2019, they were replacing the entire top case assembly in MBP. I have no reason to doubt they still are. The article is mainly about the MBA so it is a little confusing, to be fair.