i do a fair amount of research, and there is nothing in the mmo-mech forums, nor the skill tree that shows me that hybrid gets the blade barrier benifit. i do not have a jugg, so i could not draw on such experience for that knowledge.
Did you even try to determine what the hybrid tank spec *is*? This
is the basic hybrid tank spec (the last point isn't spent because there isn't a "standard" place it's spent). If you look at it, you'll see that you actually get the Blade Barrier talent. As such, it *is* in the skill tree, so unless you just didn't know what the hybrid tank spec actually looks like, you would've actually seen it.