It seems to me that Láadan was doomed for several reasons. It's premise- that existing languages are biased against women- is absurd. Languages are spoken by women as much as they are by men, and women therefore have an equal chance to invent and adapt natural languages. GIven the thousands of natural languages that exist in the world, some are probably because of their history slightly biased against women, and some against men. But it would take some kind of act of God or a universal defect in biology or something to arrange it that every single existing natural language is inevitably skewed against one entire sex, in favor of the other.
But even more importantly... Láadan was doomed to failure simply because of its own demographics. Its premise seemed to be very much grounded in radical feminism, and you either fall in with an extreme feminist ideology, or you don't. And most women don't/didn't, and wouldn't want to be labeled as man-haters. Nor do men; although I could see how it might have attracted some curious males interested in seeming open-minded and supportive of the feminist cause, but again the whole radical feminist premise just about suggests that if men adopted it they would inevitably pollute it with their male-ness and that it would ruin everything. Even if it DID catch on within its target demographic, it's still a niche of a niche of a niche and would have a very difficult time staying alive.
It's best chance would have been, say, if liberal colleges with a strong woman's studies department got the linguistics department to add the language as an elective course, and then it snowballed from there. But even if you got them to do that- how many students do you think wold take the made up language when they could just as well take one of the natural languages that people actually spoke? Well, a lot if the Láadan course was easier.
But it didn't happen as far as I know, and now it never will.
IMHO it was a product of its time, when Feminism carried enough sway that universities would accept this kind of abstract (otherwise unproductive) experimentation in the name of equality and women's lib. I think Lobjam stole some ideas from Láadan... hopefully they stole the best parts and have integrated them into a language not dependent on a language department buying into politically correct assumptions.
But if we can infer anything, Laadan's failure might as less about its own design and marketing, and more about languages generally not discriminating against women so much and the M-W Hypothosis being invalid.