Yep, my confidence in this software is very shaky. It's missing a lot so far.
I think I'm going to just use Photos for iPhone pictures for now, and stick with Aperture for my "serious" photography with "real cameras". It's easy enough to export RAWs into JPGs to import into Photos, so I can enjoy all my photos on my phone without having to depend on Photos for cataloging my important photography.
Of course I need to switch away from Aperture soon; Lightroom will likely be it. There's just not much very good software in this space.