"people" is "most users of the platform". A consistent native platform experience has been one of the cornerstones of macOS since even before OS X came along.
If you ask most people, they probably won't know to identify this as a desirable trait, but what they do know is that if they launch a non-native app it will likely not look or behave according to their expectations. For example, I'm an expert user and even I'm still tripped up by the fact that Slack has a rather anemic menubar, and Discourse's is even worse.
In the native vs not-native look and feel discussion, I hold the opinion that different platforms have different answers. In MacOS, users expect a native look and feel, or at least something close to it.
Windows, Linux and Android users have no such expectations. In fact, in the case of Android, a non-native look and feel could be considered a positive thing since the native android look and feel is kind of terrible.
If you ask most people, they probably won't know to identify this as a desirable trait, but what they do know is that if they launch a non-native app it will likely not look or behave according to their expectations. For example, I'm an expert user and even I'm still tripped up by the fact that Slack has a rather anemic menubar, and Discourse's is even worse.