The Epic Universe announcement didn’t meet any of that criteria. Neither did the UK park announcement. Even now, Epic Universe is just a very vague “Opening in 2025.”
The DreamWorks Land announcement just mentioned the properties and 2024 opening.
So both Disney and Universal clearly disagree with the meaning people keep trying to ascribe to announcements.
The Epic Universe announcement confirmed they were building a new park, which is what they're doing. Specific details were always going to come later. It also came with an opening window, which was missed due to Covid, but we were nonetheless given a reasonable idea of when to expect the project's completion. Even now, we know it's coming next year, which is still in-line with the pause in construction. We just don't know when
exactly, because the projected time frame has been
moved up, which is certainly more palatable than another delay. Either way, no one ever gives us an exact date this far out, not even for a single attraction, much less an entire park.
The UK park technically hasn't been "announced," as there's no actual confirmation that it's happening. They only revealed publicly that they were exploring the option because they were forced to. It could still be scrapped tomorrow for all we know.
Universal & Disney are both well aware of the expectations they're setting when they officially announce something. This is why they're usually careful to not include certain details or a time frame when these things are currently unavailable. And to their credit, Disney didn't initially give us a time frame for their Avatar project, nor did Universal with their Nintendo project. Still, do I personally think both projects were announced prematurely? Absolutely. You should
never announce new attractions while still early in the design process. It serves no purpose other than to make for a more agonizing wait for guests. And yet there's still a big difference between making vague promises you'll get around to eventually and making explicit promises you can't keep, such as Tron's opening window, or the cancelled Marry Poppins attraction. Those were just
bad.