It seems like a lot of the mons hatched from eggs are in the wrong tier. I feel like Eevee and Pinsir are definitely 5k level mons, IMO. Scyther and Onix are alright as 10k assuming Scizor and Steelix will eventually be added into the game.
And there's a long list of 5k hatches that I think should be 2k, majority of my eggs are 5k and I tend to hatch mons that are already super common in my area
I honestly thought that the 3 starters for sure would have been 5k hatches but I'm cool with them being in 2k eggs