My grandma made me a biscuit quilt for my high school graduation over 40 years ago. It was made by machine stitching equal sized squares right sides together, leaving one side open, and turning outside right. Each biscuit was stuffed with, believe it or not, a worn out nylon stocking. The biscuits were hand sewn together on point. There was no need for a binding. I wouldn't recommend the nylon stocking stuffing (way too heavy), but the hand sewing method is good if you enjoy hand sewing.
The example you show mentions that the yarn ties are there for design and sensory experience for kids. If they aren't serving the purpose of holding the quilt together, they seem superfluous to me.
Have fun with your project!
Dayle