Uh.. No.
You get hit once doing Unload and you can lose 1-2 ticks WITH the talent.
I took it off my bar completely because the only reliable time I could use it was when something was stunned or if someone is holding aggro.
What this proposes is that my entire experience from when I got unload to level 50 has been imaginary and all those MISSED ticks because a mob sneezed at me were just my imagination.