That doesn't surprise me.. Corporations are rife with 'diversity training' and this is what you get. But, as to the two commercials in question, I don't think they are targeted at gay people.
Yet if the ads WERE targetted to gays its just simple capitalist economic sense.
Gays and lesbians have large amounts of discretionary income and for some reason seem even more fascinated with new toys and shiny things than straight people.
I would do niche advertising if I was a Lexus exec,aiming at big cities along the East and West Coasts.