I suppose there's something to say with her straying from normal release patterns. It used to be exactly the same for many years. At least 3 singles, album, remix album. Repeat. (Not saying this is bad or good, just saying that this is how it went down haha)
Personally, I'd rather her release this now than release a best album for her 15th anniversary. While this is still possible, I'm holding onto the idea that she won't.
And hey, if you don't want to buy it, then don't buy it. That goes for every release. This could have been just 1 new song plus all music videos for included songs, so at least they're making it more interesting than it could have possibly been.
Would I rather a 3A side single, of course. But, we win some we lose some.

Maybe by getting a best album out of her system she'll create some interesting music. :p