Thanks for posting pictures of your tanks. You have clearly shown how an NPT can function with little maintenance!Pictures. First is the aquarium after a few months of neglect and the others are after a recent trim and PWC.
However, you may enjoy the tanks more with a little more upkeep. For example, a little trimming allows for new growth, better light penetration, and keeps one plant species from taking over the tank.
When I was busy with demanding jobs, I really let the tanks go, but they still worked. Now I have more leisure time and have enjoyed keeping the tanks more-- do I dare use the word-- "aquascaped".