That's certainly a way to see it lol.
I don't think Astro has a problem of personality at all, obviously everyone has their favorite Bot based in the character and the franchise they represent but everyone knows who the main character is because the main character appears in all the marketing of the game, the main character gives name to the series and it already has 3 games. Wanting to play with another bot isn't a decrement to Astro, that's like saying people who like to play as any other character than Mario in a game that has Mario in the name is bad for the character lol.
I agree that the world of Astro needs to expand introducing new characters but the worst thing they can do is making a Little Big Planet 3 where they introduced a bunch of characters out of nowhere that no one cared about. It has to be done in a more meaningful way. Personally I think the best they can do to start expanding Astro's world is annexing the Ape Escape franchise and Toro Inue in the Astro's franchise, they fit perfectly, they are put together in the japanese marketing, it would be the best way to reintroduce those characters to the markets outside Japan and Team Asobi has proved they are very good in what they do. For now the chances of Team Asobi next game being an Astro game are basically 100%, Astro was in the presentation about PlayStation in the section of emerging IPs (with the Ghost franchise and Helldivers) and Asobi was in the section of single player games studios. The commitment from Sony is real.







