Lash Ultimate (A Channeled ability) gets cancelled by Sleep Dagger and Naptime

[luigi64fan]

The sleep effect does not interrupt channeled abilities, so why does it cancel Lash's Ultimate?

Assuming that this description of Sleep is to be believed, Lash's ultimate should NOT cancel his ability. At most it should lock his mouse so he cannot move his targeting.

 

[stanears]

This also works with the following skills:
- 1 Yamato (always disappear)
- 4 Gray Talon (if sleepd in cast time it just disappear without explosion, otherwise, owl will instant explosion)
- 4 ivy (always disappear)

I think it's logical.