Thanks, yeah... I noticed this too, but I'm still in 2 minds about this one.
In early posts I used to share both the @dtube and YouTube video in my posts (because I thought that without my seeding them nobody would be able to watch my @dtube video)... turns out that isn't true... so then I removed the YouTube embeds in subsequent posts :-)
I would really like to support @dtube / Steemit and grow my following here, so don't really want to embed YouTube vids... but I might switch to doing both again until dtube becomes a lot more viable as a "video watching" platform.