I have a lot of thoughts on this topic

First off, as Graeme pointed out, it's lobbying groups that are complaining. They do indeed complain about a lot of things, and it could just as easily be them complaining about Will and Grace or Queer As Folk, both of which I personally liked and enjoyed. If that happened (indeed I'm pretty sure that did happen) then it would be a bit unfair for a bunch of lesbians to be sitting around in their lesbian forum saying, "those gays guys, there's just no pleasing them. They finally gain media recognition in a way that shows their lives and now they're complaining."
The point is, one sector of the gay community cannot speak for every other sector. Over the years, some of these lobbyists have complained about quite a few things I personally took no offense to, or even approved of and appreciated. I'm not trying to pick on lobbyists either. I think they're our best resource, and one day I plan to join their ranks, but that doesn't mean they're always going to represent the will and opinions of all gay people.
Anyway, apart from all that they actually have point. The general argument is against gay people being exploited for straight entertainment. That's where this comes in. This isn't being marketed to lesbians, it's designed to turn on
straight guys. Also, while I can't really say since I haven't seen the show, I suspect there's the typical argument that it misrepresents lesbians and bisexual women. This is exactly the arguments made against Will and Grace. Many gays said that it was playing to stereotypes AND 'neutering' Will and Jack for the comfort and enjoyment of straight people (and indeed I think the show was a bit too cautious in terms of not showing the same level of physical/sexual contact between Will or Jack's boyfriends compared to Grace's). So maybe there is a point to that argument. Maybe these are examples of straight people just gaining entertainment from GLBTs without taking us seriously.
Then there's the whole 'misrepresented' or 'perpetuates stereotypes' thing. QAF
really took the heat on this one. Well the thing is that that argument is always going to be a 'well yes and no' thing. Some gay people really are like the QAF gang. Some gay people are like Will or Jack. Some lesbians are like the L Word girls. Some bisexuals are probably like the girls on Grey's Anatomy. Are all gays, lesbians, or bisexuals like them? Of course not. So yes, some segments of the population are being misrepresented, and some 'stereotypes' are being perpetuated, but at the same time some of these representations and stereotypes ARE spot on for
some GLBT people.
The other issue is that things like this are always a double edged sword. Will mainstream 'exploitation' of gays and lesbians for entertainment ultimately normalize gay and lesbian life and make straight people more aware of them and less intimidated? I think so. I think it's ashame if the first thing a girl's friends think of when she announces that she's a lesbians is "Ohh! Just like that 'I kissed a girl song'!" But on the other hand at least they have
some reference point. At least they're not looking at her like she's grown a second head and announced that she's from Jupiter.
So personally, I think that to some degree the above song and television shows
are exploitive, and they
do misrepresent gay people, but I still think they ultimately do more good than harm. I think that overall they spread acceptance and understanding to straight people and provide GLBT people with a valuable opportunity to see people with their feelings, emotions, and issues represented in the media.
So yes, I would say that there is something to the argument that this is exploitive to lesbians and bisexual women, but again I would point out that not all lesbians are complaining, and also that I think that ultimately it might have a net positive effect on society in terms of it's acceptance and understanding of lesbian/bisexual issues.
-Kevin