Blendspace

I have been trying to use Blendspace for some time in my district.  We continue to have the conversation about it being safe.
Here is an example I created for Animal Reports
I agree that when students can view YouTube videos that issues can come up.  However, shouldn't we teach students about doing the right thing when they view something inappropriate?  I want to always keep my students safe, however, I know that no matter what filter is being used that life happens.  I want my students to know what to do in situations.  They are growing up in a world that will always have to make choices.  I am interested in what you all think.  Do you Blendspace?  If so, how does it work for you?