This tutorial demonstrates that one critical step was missing from the prior tutorial, which is to convert the video layer to a smart object before applying the effect
Quite contrary: that's you who missed that in Richard Harrington's tutorial, but not Richard Harrington who didn't say that.
And two people tell me to use AEFX without pointing me in any directions of how to do that. Useless.
Since you didn't say anything about your skills, it's impossible to guess what explanation you may need.
Now that these steps are taken, I have to take the footage back into Premiere. It's a workflow question.
So as to get your video back from Ps, you have to render it out and import into PrPro.
In case of AE you can either render digital intermediate and import it into PrPro or use Adobe Dynamic Link.