-Regarding TMC:
They did.
-Regarding FTCJ:
Because that costs extra money.
Probably another reason why FTCJ's cover is monochrome aswell. Though this might just be a style.
I'm sure funds permitting there would be all sorts of vids, bio's, lyrics, history and pics. I heard that it was also a cardboard case. I personally despise those because they disintergrate over time, but still, it
is a budget saver, at this stage.
And these days, very few bands actually include lyrics within the casing.
Just be thankful that there
is another album.