It's not really like your examples because MCP has been around for about 1 year whereas those others have been around for decades and are completely ubiquitous throughout the software industry as a result.

The difference is those terms are ubiquitous terms after 20 years of usage. MCP is a relatively new term that hasnt even been around for a year or so

I think this issue seems completely straightforward to many people… and their answer likely depends on if they know what MCP means.

The balance isn’t really clear cut. On one hand, MCP isn’t ubiquitous like, say, DNS or ancient like BSD. On the other, technical audiences can be expected to look up terms that are new to them. The point of a headline is to offer a terse summary, not an explanation, and adding three full words makes it less useful. However, that summary isn’t particularly useful if readers don’t know what the hell you’re talking about, either, and using jargon nearly guarantees that.

I think it’s just one of those damned-if-you-do/don’t situations.

Textbook example of gatekeeping if I ever saw it.