Dev, if this is true, please reduce your coins as soon as possible.
Cool your jets bro, that's not how any of this works.
Each block that is mined, around 1 per minute, rewards miners with a set amount of coins, around 18500 currently (this is decreasing over time).
If you use 1 hash, or 1 billion hashes, it's always the same reward.
Miners in a pool split the rewards, which helps small miners like me. It averages the reward.
When you see "1kh/s = 1200XTL/day", that's estimating your reward based on your percentage of the total network hashrate, and dividing the number of blocks x average block reward for the day. It's not actually rewarding you per hash.
Keep learning and you'll get a handle on all this stuff, I know it can seem overwhelming. Hey googling "CryptoNote emission curves" and I bet there are sites out there to help you.
Dev said that the number of blocks will be significantly reduced with the increase of depth (not sure how it is related with hash power). If this is true, then it will make sense. It means that it will not extract each block/per minute. It should extract each block/(e.g.per hour) or more time. Then the number of coins will be reduced significantly. If it is this case, it will be right.