MacOS is actually more descriptive. And MacOS 10 is in keeping with long years of MacOS 6 to MacOS 9.
FYI:I was a charter subscriber to MacAddict magazine ,which I found the most useful Mac publication in its time. Also first got on the internet with a Mac IIci running Netscape in 1997!If not for the constant push of forced upgrades I’d still be using it.
Some of us older Apple users first got on line with Genie using an Apple II or II GS. I can remember when Other World Computing was an 1/2 inch add in A+ magazine. }:-)