Yep. There's wasted light and there's an under lit corner. I used to use blurples in the corner, but I got tired of their stupid color. So replaced them with a Spectrum King 120w Mother's Little Helper, but that was a waste of electricity. I do get a little crossover from the other tent, so I push the 6.5's first light over so it's close to the center of the tent. That's probably hard to visualize, but it covers most of the corner plot and the plot closest to the portal between the tents, which gets light from the other tent.
It's not horrible, but not ideal. When I upgrade my lights I'll probably stick my HLG in the corner and dim it down.