That feels like it's been an issue for a lot of cars for a long time. I know there are actually standards that govern how bright they have to be minimum, but they feel a lot more like signaling lights than floodlights in most applications. The gen 3/4 have an interesting setup too that has driven me nuts for years.
I damage the corner of my cars years ago and specifically the bulb holder for the reverse light. Figured it wasn't going to be a big deal to get a replacement since I still had the old part and it had a part number on it. The catch is that everywhere I ever found the part listed it as "export only" because it was used as a fog light socket or something on export cars. It never listed the Viper as an application even though it was used there. The only way to get one was to order the whole reverse light assembly. I fought with several places about it saying I had the part in my hand and I know it came from a US car, but their systems wouldn't let them order it I guess. From what I can tell I think it's basically a regular two filament bulb socket, but the lines are connected internally so both filaments light with a single input. I think it was a way to get more light out existing off the shelf bulbs. At least that's my theory.