On thicker PCB it may be hard to apply enough paste to fill the hole only partially occupied by a pin. If you do 1.6mm PCB, it would be better to use one with SMT type functional pins as providing enough paste for mounting tabs with Pin-in-Paste technology is much easier and solder preforms can be applied too. Such connectors are generally used in portable devices like phones where PCB thickness usually is on lower side. If you look on desktop PC hardware, it's generally 1.6mm and any cards that are put into slots must be 1.6mm to fit properly.