To flush or not to flush

[cravin]

My '08 e70 is approaching 100k miles (75k of which are mine). It doesn't get driven too hard, no hauling, etc.

Wondering if there is more risk than reward in flushing the transmission fluid and replacing with clean. I've seen multiple notes on BF saying not to touch it because you'll release all the goop and possibly damage the transmission, and others saying "if it's a power flush, you should be fine". The x5 is acting fine, but wondering all the same.