Yes, you're right. That fact is, to a certain segment of users - like my senior citizen mother - a strong positive.

The developers of LibreOffice made a conscious decision to make their product look and feel like Office, since one of their goals is to help people learn these suites for functional skills, so their learning would then translate to the predominant package. I have this first hand from a conference.

Then of course Micorsoft created their ribbon UI and enforces protection against others copying it.

Personally, I don't find the ribbon intuitive, and others, perhaps a majority, feel the same way, but Microsoft has all that weight behind them.

If the system resource use were comparable to early and mid 90s applications, too, I'd love it. Always felt too heavy, preferred Gnumeric and similar for personal use when on Linux as a result, when not having to try to inter-op with Microsoft Office. Now prefer Apple's office applications for similar reasons. I suppose (misuse of) Java's probably the main reason for it.