I agree by quantity / expected returns (+ playing to the mobs) but we can focus on understanding and improving multiple things at once. This last sentence is also pretty important:

The authors said it is the first time debris from a specific spacecraft disintegration has been traced and measured in the near-space region about 80 to 110 kilometers above Earth. Changes there can affect the stratosphere, where ozone and climate processes operate. Until recent years, human activities had little impact in that region.