I don't think Pierce is that much of a reach here. It's fine pick & easy to build around.
That is how I see it too. Pierce has a fair argument to be the best player on the board. He is so well-rounded and can play with absolutely anyone and he can play SG or SF which gives his team added options moving forward.
There is quite a few players who will see a drop off on a team that isn't built around them but Pierce will maintain his value better than most because of his shooting prowess, off ball game, above average D and rebounding and then throw in his ability to create for both himself and for others.
I'm a fan of Pierce being picked here.