Fagen is a digital freak as far as I can tell.
I like Morph The Cat and I do agree the bass notes go low, but overall the recording is pretty digital sounding. I wouldn't call it artificial, but listening to it a lot, over time it becomes obvious that the attempt was made to make this album sound as hi-rez as possible.
But I do think that the Morph is overall a decent sounding album. I remember when I bought Aja and Gaucho remastered CDs. Just to discover when I came home and played the remastered Aja that the older versions sounds more natural. The remastered Aja and Gaucho CDs sound artificial to me.
Also, I don't think that Morph is the album to take with you to evaluate speakers, although if you think this is the benchmark for quality of recorded bass, then yeah.
There are better discs for that I think. I usually use Patricia Barber's Modern Cool - track 7 for drums and track 11 for bass. Also, Brian Broomberg's WoodII disc has some crazy bass.