I completely agree. Not condoning anything but the casual nature in which people talk about this particular sex tape is in HUGE part due to how Colin dealt with it. Back when it happened, he never portrayed himself to be or was seen as a "victim" (unlike how someone probably would today, especially a woman) and was never ashamed/embarrassed about the fact that he had a sex tape and that people were seeing him naked, etc. (He's unusually open/honest about EVERYTHING.) At the time he was just more concerned that it would have a negative impact on his future career (which luckily turned out just fine). Like you said, for many years afterwards he constantly brought it up himself in interviews (basically just reminding or introducing people to this "funny story" of his - OMG COLIN seriously) and was very jokey jokey about it.

I don't think anyone here or in this fandom (I say this because the general public can be trash/ignorant about stuff like this with other celebs) would treat any other person's leaked sex tape so casually and like it wasn't super harmful/dodgy. So jumping down people's throats for not taking this one super seriously and not tagging is unnecessary IMO, though the tagging suggestion itself is certainly not unwelcome.