After 4 years (probably closer to 3 but I lost track) of trying to grind Challenger's Cave for basically anything, I decided to leave for a bit to go and horde hunt a Swablu
Couple hours later and it paid off, so apparently I am not under a hex
Definitely hopefully never.
Also, Firered/Leafgreen added Sevii. That's a region mostly exclusive to FR/LG. There's also a lot of mechanical differences between FR/LG and R/B/Y that have them stand apart from each other.