There are 5mm dowel pins with thread down the center to allow them to be pulled out instead of pressed through, might be a good replacement for the stock ones for easier future removal once they have been taken out. I believe the original should also be able to get drilled and tapped to be pulled out the top, doing it at low speed in a proper drill press would be advisable.
I’m not sure about how much torque the current pin/seat can take before it would start spinning, so if you’re going to try this, probably go with M2 or M2.5 tap size. OD 5mm M3 304 Stainless Steel Female Thread Cylindrical Pin Locating Dowel Pins | eBay