Well to become the best coin and have the most innovative features, it's going to cost.. And sadly the best people charge a lot.
I don't think it's that big of a number really, since a large percentage of 3.9% will go towards growing/benefitting the coin. Which is something people these days demand and expect, without thinking of the cost.

on this address is only 173,624.39 now we have 35922 block.... where is 365200 coins ?
You have to calculate that a lot of block where POS blocks, so less total coins after POW, and foundation get's less coins to. More than 1/3 of 35922 blocks where POS.
Correct. Everyone will get less PoW coins because of PoS blocks. Including dev/fund. It does not change the overall percentage what they get. Dev fund will control 3.91% of all coins minus the ones they are giving away or selling.
That's quite a percentage....
That's only if you believe the dev team will make this use with what they have.
Now, why should anybody believe it?
There is no proof yet that's right, but it is more probable they will use these 3.9% to P&D and fill their pockets.
Time will tell, hope for you all that this case is different, but I'm skeptical.