Can attest to it being reflect-able, or perhaps bugged at this moment.
Used it on fire shaman (to bounce to the ettin) in the un-cat fractal daily. promptly condi bombed my team and downed 3 team mates.
I know because i saw >>20 stacks of bleeds and 5 other condis after i casted it. Also happened during Aetherblade when i bounced it off Frizz.
As far as I know both of these champs don’t reflect projectiles…