It does look like you have 2 stepp knots, the spliced side is usually on the cross bar so it can slide to either side depending on preference. And also I know this is just a demo pic but you need to keep the rope inside the standoffs, the left side goes around the outside, this is not safe. I am sure you know this but someone looking at the pic may get confused.
So onto your method, after you climb the aider, stand on step, then you reach down to your feet to grab the aider? I am not sure I am flexible enough for that, lmao. Welcome to the site and a fantastic first post!