I think it's because they are perceived to be focused on marketing, keeping special interest groups happy at the expense of others, and patent trolling and not

I think it's because they are perceived to be focused on marketing, keeping special interest groups happy at the expense of others, and patent trolling and not so much on creating truly good products, IHMO. I can't objectively measure how much of that perception is actually true, but their subscription model for Java, their systemic underpayment of their women employees, and their frivolous lawsuit against Google didn't help.