I've had 2 previous companies do something similar. Team of 5 or so develop a product. It's realeased and they move / layoff all but one or two devs including me. I get overburdened; ask for a raise. The first company that did this, the boss literally scoffed at me. I was gone within a couple months.

The second company recognized my value and gave me a very generous raise. Unfortunately for them, shortly after that I got an offer I couldn't refuse.