The thing is that even if they're not getting revenue from the site, every time somebody watches a video on a streaming site, that adds to a statistic that the producers of anime are looking at when they decide what to make and how to distribute it. We're at a point where the industry is considering the foreign market more and more, and we're now affecting what actually gets made in addition to just what gets translated. The Japanese market has traditionally relied on DVD/BD sales to fund productions, and they've really fallen off in the last few years, so they've been looking much more to foreign markets as a core source of funding.
Crunchyroll and other sites are licensing content from the producers and distributors. When they get the money from ads, that money goes right to paying for the content.
Moving on, Charlotte's isn't as bad as the other two, but I can clearly hear her voice being heavily modified during the song.... it sounds yucky. Laura's like I expected had a clear tolerable voice, but it sounds like she by nature only projects a pitch with limited variance.... or she was told to stay at that level to harmonize with the others. Aside from that, she at least got "Next Future!" down pretty clearly... but it's still got to be Houki's that I love the most.
