I think most of this is more or less accurate. Tenzen is pretty much rock solid confirmed to have the Echo. Krile availed herself of the blessing of Light, so we know that's something that can potentially come at the Echo layer (here's a crystal you are now a Warrior of Light) rather than the Champion layer (all the crystals, extraordinary power). Ysayle exploded into Light mist, too, if you recall.


So Tenzen = A Warrior of Light (Echo, etc.)? Probably.


Tenzen = THE Warrior of Light (Hydaelyn's singular Champion)? Probably not.