Probably. I just wish Sega had a bit more... "Sega" I guess.
They already did with Space Channel 5
About the later two, I blamed the branding of the franchise / the titles.
Even Europe and North America had different version of the title.
The Japanese title were indeed weirder :
"I'm willing to die for you" and "Where do babies come from?"
but at least it's still more memorable than just "Project Rub"