I'm sure the century old term bimbo isn't only defined by modern medical surgery, and that we can find a nice middle ground that doesn't turn the bimbo dream into a bimbo nightmare.
It just so happens that terms evolve with time.
Obviously Bimbos didn't have a lot of surgery when plastic surgery was extremely exotic. Nowadays it a lot more common in all of society. Bimbos have taken bimbofication so far, it can be argued that what used to be considered as a Bimbo isn't the same as what it's today. To me it's not the same if someone dies their hair blonde and uses a push up bra compared to someone who's had BBLs, lip fillers, multiple breast augmentations, rib luxation. The only natural thing in us humans is to evolve and improve our surroundings, technology and tools.
So to me, just playing dumb, being blonde and smiling a lot doesn't define a Bimbo anymore. That's long in the past, even since the 90s. For me that's just a dumb blonde I know people like to use the word to describe that attitude, but there's a growing culture around the definition that requires Bimbos to do everything and all they can to look as sexual and plastic as possible. That's just my opinion regarding the word "Bimbo" and something I regard as an unspoken agreement amongst people in that "community" so to say.
This game seems to somewhat agree, as the whole first part before milking the NTR lovers was very focused on her getting fake tits. (I don't mind the NTR, I think it's not unlikely a Bimbo lives her sexual side very actively, and sharing or a Bimbo hotwife etc. seems like a plausible lifestyle for some of them)