"With over 650 fonts to choose from, the hardest part of using it is deciding which ones to use."

Which is why this approach is cr*p if you DO care about user experience.

Know what? 650 fonts sounds good but that's it. What plugin and theme developers absolutely refuse to hear is the vast amount of users actually asking for "easy typography", that is to say pre- and well-made combos because, guess what, they don't know how to do that right.

So they Google that and end up using combos others have been using.

Even worse, there are Google fonts which you should not use at all for body copy and those fonts make for a large part of the catalogue.

So why not diving a duck about user experience, developers? You know that may harder to sell than the 650 number, you don't know how wrong you actually are believing that. I can guarantee a plugin/theme with combos will be a hit.