I think you might be overrating Siakam, but I also think the Pacers still have enough to go to the ECF next year if things fall right. Of course, so do several other teams.
Siakam has averaged over 20 pts the last seven years straight. He's made 2nd and 3rd team all NBA. Nobody thinks of him because he's not loud and flashy. He's played in Toronto and Indiana, so not the best markets either.