Accessibility in the back corner was the only issue I have encountered ... even in a 2 x 4 tent. So I made my SCROG nets with lightweight 1" x 1" wood trim so everything can be completely mobile
The lateral weave of the branches secures the nets to the plants without any chance of the nets slipping off.
So I can take the plants and the net out of the tent as one whole entity if I need to. And with the frame being lightweight wood, there is no undue strain on the branches.
Accessibility is key to efficiency and I most definitely agree its an issue of concern with Scrog cultivation at large. Large gardens tend to have more contention with how that translates, and it usually spells added labor hours/$. For the residential grow, that can also translate into being issue especially if ones mobility is limited. That said, single plant systems where by we are scrogging a plant by itself, and then stacking single plant scrogs in a given space to fill the sqft, proves quite ideal. We normally think in terms of easy setup, vs ease of cultivation process, and thus simply stretch a web across a gicen plane, and fill that plane from below accordingly. What I have been working with over the last several years (maybe 10), is just that, single plant scrog systems. These give the ability to access all portions of the plant. As a result of the modular capabilities which allow removal from a given space such as yours, if the plant is only committed to its own stand alone trellising setup, as you mention, its removable to be worked on, or spun in place, etc.
Im not a personal fan of weave techniques for a number of reasons we can get back to, but removal at the end is maybe the most obvious.
That said, there are a number of sinarios in my own garden where it does happen.
Thankyou for bringing up that point, I think this topic is important to scrog overall.