Free is just too derivative to have the impact the band appear to shoot for.
There's more than just a niggle that Free isn't breaking new ground. More disturbingly, the album is a wasted chance to build on Vivarium, and isn't as good as so much of the music it tries to emulate.
It's a shame that there's so little of note on Free, because Gil Norton's production is fantastic as usual. But bless his heart, it's ultimately a wasted effort.