For embedded youtube videos there is a
rel url parameter, which allows you to turn off recommendations.
Currently the Cwicly Video block does not support this.
We have tested copying the output of the Video block to a Cwicly Code block and manually adding
&rel=0 to the iframe source and it works perfectly, so the only thing that is missing is the UI for this.
As the video block is such a user friendly block for clients, it will be a big win for them to be able to toggle this feature as for some websites/videos it is not appropriate to show recommendations.