Love Sufjan. He has a Mozart mind in his own right.
If Mozart was raised with an accordion and looney tunes he might Weird Mo, if he had parents like Carrie and Lowell he might be giving LGBTQ+ and Christian Conservatives a Christmas album to agree on.
Trying to compare a Mozart of our times to the original is like comparing an apple to the tree it grew from. There are obvious similarities but fundamentally are just different things of different times.