Working as intended. There's 4 different ways to get a new weapon:

- Zodiac: Do a lot of grind
- Leviathan: Do less grind than Zodiac (statistically speaking, mileage may vary)
- i110: Be good enough to do the new turns of Coil and fight some RNG
- i115: Be good enough to beat T9 and fight some RNG

For people who are not skilled enough to do Leviathan, Coil2 or T9 then this is the best option. It's also something that will be upgraded over time.

For those who are able to stomach grinding Atmas for hours on end, then congratulations. I personally get discouraged after grinding FATEs for 2+ hours and just find something else to do, but I also don't expect something that was supposed to be a long term goal by design just handed to me either.