Some have pads instead of pins.
BUt the idea is you need tons of those pins in a small space. Nobody wants a CPU the size of a piece of paper just for the sake of stronger pins.
Also, from a design standpoint, most CPUs only ever “move” one time. The pins or pads are only ever at risk when they are installed, and in most use cases that is just one time in the life of the product. No need to make it super durable if it is only ever at risk for one moment.
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