The consequences are staggering, and some would say, frightening.
Why? It's an interesting question / subject, but that's about it. It's like when you ooh and ahh as David Copperfield makes a badger disappear, knowing how the trick is done is the staggering thing, not the possibility that before knowing the mystery shows "magic"
The fact that we don't know how to communicate our personal perception of "red" [whether it's qualia or whatever] or the fact they differ between people, is no more staggering than the fact I can't speak Japanese and thus the entire contents of a conversation in the language are unknown to me as well. At which point if I start oohing and ahhing at the staggering, frightening mystery of it all, I'm just displaying my ignorance of Japanese, I haven't found a new profound mystical property of the language or the universe that's beyond ken - why should ignorance of the mechanics of perception be any different? Just because there doesn't appear to be a group of people that do know yet?