Looking at the comments in the pinned post talking about the Apollo Trilogy, I see a good number of people saying the name is either odd, silly, or outright incorrect.

I personally really appreciate it being called the Apollo Trilogy.

Series-wise, even if it's not as consistent as the Phoenix Trilogy due to the shift in tone, visuals, and protagonist, different attempts at Apollo's characterization, and only one game named after Apollo, I still think Apollo's development from rookie to ace makes AJ, DD, and SOJ feel a beginning, middle, and end to Apollo's story, even if his story isn't always focused on and ends at a drastically different place from where it begins.

Marketing-wise, I like the parallel in naming of "Phoenix Trilogy" and "Apollo Trilogy" rather than having a drastically different name like "WAA Trilogy" or "Dark Age Trilogy". It also seems like Capcom has a lot more faith in this collection standing on its own rather than riding off the success of the Phoenix Trilogy by calling it "Phoenix Trilogy 2", or by making it feel like a smaller release by calling it "The AJ, DD, & SOJ Collection". It makes these games feel like they have greater significance than just "the games that came out after the Phoenix Wright Trilogy."