Let's say Google said it. "If you want to use Google, then you need to stop using IE." There would be some complaining, but they'd get it done.
That's where the "balls" part comes in: you have to tell your users, that you just don't support their platform. Happens all the time, but for some reason browsers are treated specially and we all live in fear of losing the IE market share.
Someone did a calculation and decided that the business cost of supporting IE was worth the additional customers. It's not about balls, it's about cost benefit analysis. Us developers just hate IE because it's so different than all the other browsers.
That's where the "balls" part comes in: you have to tell your users, that you just don't support their platform. Happens all the time, but for some reason browsers are treated specially and we all live in fear of losing the IE market share.