Am I doing it right? (Hack for Transparent object to be in Opaque Texture)

I just discovered a very useful thing. I need to apply distortion to Transparent objects, but when using Scene Color node it just grabbing the Opaque Texture.

But, when using Renderer Features, I can just, for example, apply a random opaque material to a particle system that needs to be distorted, then in Forward Renderer Asset using Renderer Features I can rewrite this random Opaque material with Transparent one for particles. And, even it will be rewritten into the Transparent material, it will still appear inside Opaque texture. And now, it can be freely distorted.

http://prntscr.com/rkmeoj