my personal opinion
I do believe that we can use bioremediation to help clean up oil spills, but I don't think it's right to genetically alter these living cells. If we could just do it naturally, it may take longer but it wouldn't be interfering with the cell and its environment. I think we can use bioremediation without modifying the cells in the future because there will be less pollutants; we are going to run out of gas. Having no gas polluting the water and soil would help a lot, leaving other pollutants much easier to clean. Being in this situation, we can use the natural cells to help clean these messes, not modified ones.