What about it? Someone with an option actually paid money to exercise it. They actually loose some of their own money based on their own decision.
Someone with an RSU they thought was worth $300 when they negotiated and thought it would be at $600 by the time it vested and they could sell it now only get $100 per RSU they actually sell.
My answer to "What about me"? Well boo hoo!
Random internet search yields and example on blind:
FB offer $185k base + $200k RSU/year = $385k total comp
Let's apply your 300/100 example. So the poor guy "only" makes $185k base + ~66k RSUs. IFF he actually sells.