A world where nobody ever even hints at their sexual orientation sounds like a boring world indeed, and frankly a very implausible one. Do your straight colleagues never mention their wives, girlfriends, kids? Not even during incidental small talk? No photos on desks, no awkward flirting at office parties, no relationships between employees? Not a single mention, ever, of finding a celebrity attractive?
The world we need is one where gay and bi people can be just as casual about their sexuality as straight people can. That doesn't mean avoiding the subject altogether unless strictly necessary, because that is emphatically not what straight people do, hence that would not be equality.