This just means nobody wanted to pick up the pieces that HP left behind. Frankly, I really can't blame anybody. Apple already had their own OS. So did Google. Microsoft could have gone for it, I guess, but they would have wanted to rebrand it as Windows, at the very least. Maybe Blackberry could have taken it but they were still too stubborn at that time thnking they could still keep going with Blackberry OS (then called something else, don't even remember what lol).
I think the reality is that it is/was a good OS that simply got run into the ground. Nobody wanted to take the risk with damaged goods.