What is going on with the underbelly of this Jayco?

I've had to cut my underbelly on my Jayco. The fresh water fill valve was leaking. I had to drain some water, pull out a little insulation, and pull out the tank. BUT, I used Gorilla Tape to put it all back together and unless you are really looking you wouldn't notice. Repairs happen, but that looks like really shoddy work in my opinion.