I believe loan words only happen when the word makes some level of sense to speakers of the new language. Like, wander lust is almost understandable as English.

Fingerspitzengefühl is complex enough that I'd assume people who never studied German can't even split it into the words it comes from, to guess how to pronounce it.

Finger spit zenge fühl

Finger spit zen gefühl

Finger spitz enge fühl

Finger spitz en gefühl

Finger spitz engefühl

Finger spitzen gefühl