I do not understand why Toriyama and Toei couldn't just reboot DBGT

I do not understand why those two couldn't collaborate on remaking a better GT that followed up from End of Z. Why did Toriyama make Super and then call "Super Saiyan God" a thing? It sounds like an elementary school kid thinking and he only made Super for extra income/cash, not based on quality and creativity. I prefer SSJ4 over SSJG because it's more logical and storyline directions would make more sense. I feel like Dragon Ball Super are all ideas taken from AF and these things are better off being written AFTER GT is over. Even if they were to create DBS after GT, I still prefer SSJ5 over SSJG because SSJG obviously sounds retarded.