When you say glitched textures, what you mean of course, is that they throw an error on screen. They do not, however, have any visual defect. Those screens look perfectly fine, animations, lighting, parallax layers, and all. Now its your choice whether or not you'd rather suppress that error message or throw out the backgrounds. That choice is easy for me.
First off, though it certainly wasn't an original idea, and I think the Facepalmer project owes so much to Blackfan, it is for me the most significant of all the mods outside of alii's driver. Visually, the backgrounds were the number one issue for the PC port, and this project, which for those of you who don't understand the evolution of all this stuff is really a set of macros for fractal upscaling the fragmented backgrounds piece by piece. Pretty darn cool.
That said, are the parts of the game like the bridge in Jeunon and the library under the Shinra mansion fixed now, too? I had it in mind that those were gonna be hard to work around.
I quit obsessively going through the game every time new mods came out some time ago. I think I'll wait a year or two and then play again without trying to get everything and just enjoy it for a change.