That's not the precedent set by other similar, recent submissions though, - nobody complained about this other submission talking about an event in 2004 (also ~20 years ago): https://lemmy.world/post/32137161

If you want to police submitting to this community with an unwritten rule about editorializing titles to include chronological information:

get the rule added to the sidebar instead of assuming people can somehow figure it out when there's no existing evidence of this precedent
enforce it consistently

It's not my favorite thing to have a few people who don't even make submissions getting upset at me for following the diabolical process of (1) reading the rules, (2) looking at previous submissions, and (3) copying a title verbatim from a reasonable source. If there's something that people are expected to follow, make it a written rule or give me access to your secret mind-reading device. This community isn't called sysadmin_news so I'm not sure how I'm reasonably expected to know this.