Thx for feedback.
First and foremost cookie popup appears only once so it's hard to call it annoying.
There are two ways to handle it:
1) click it (auto consent) - don't think it's good idea to auto consent things that user should be aware of - remember that content of this popup can change in future and you wouldn't be aware what you consent to.
2) block it - it's hard to reliably block it, but even if blocked this popup will be coming back every time you refresh page (not good for performance) and some parts of YT might not work properly (due to your lack of cookie consent).
So i don't see any advantages of handling this popup (beside saving one click) but there are many risks.
And last but not least extension description clearly states that this popup is not blocked - so don't know why you hold it against it.
If you know about some advantages/situations that i am not aware of please let me know via email and I'll consider adding some functionality.

UPDATE: After some discussion there are some situations where closing cookie popup would be usefull. Due to that in v.2.1.5 added option to auto consent cookies.