Some of the data from LADEE and Lunar Dust Experiment (LDEX) instrument might point to this being the case, but it was more along the lines of human-built landers do not have nearly as much of an impact as meteor showers themselves (not necessarily the impact and resulting dust).
"if LADEE did encounter any lunar soil particles thrown up by the final descent of Chang'e 3, they would have been lost in the background of Geminid-produced events." [0]
That said, the Chang'e 3 is an order of magnitude (or close to two) smaller than the lunar landers they are talking about in the study. Also my own speculation is that the more continuous thrust of a lander may get particles to higher velocities due to the additional time for acceleration in the wake of the thrust as compared to the single impact of the meteor.
I struggle to compare exactly how bad the lunar dust ejection is though. Most Micrometeoroid and Orbital Debris (MMOD) curves are specified as a Flux by particle size (velocity is sort of irrelevant, as you assume most of the velocity is from the spcecraft itself and most hits are in the direction of travel of spacecraft, the ram direction). My suspicion is that MMOD flux in a LEO orbit is still going to be far far worse.
Edit: The paper talks about flux of particles 10 um and smaller of about 10,000 impacts/m^2 during the passes. If we assume that this is a sphere of iron (new MMOD fluxes are specified in mass, not size) its ~5e-9g. In LEO at 400 km altitude (a little above the ISS) the flux of particle this size is ~1000 impacts/m^2/year. But the paper says smaller than <10 um. And at smaller masses the flux increases exponentially to 10^7 particles/m^2/year at a particle mass of 10^-18 g. So I believe my suspicion is correct that most LEO orbits are still worse, but its hard to compare apples to apples.
"if LADEE did encounter any lunar soil particles thrown up by the final descent of Chang'e 3, they would have been lost in the background of Geminid-produced events." [0]
That said, the Chang'e 3 is an order of magnitude (or close to two) smaller than the lunar landers they are talking about in the study. Also my own speculation is that the more continuous thrust of a lander may get particles to higher velocities due to the additional time for acceleration in the wake of the thrust as compared to the single impact of the meteor.
I struggle to compare exactly how bad the lunar dust ejection is though. Most Micrometeoroid and Orbital Debris (MMOD) curves are specified as a Flux by particle size (velocity is sort of irrelevant, as you assume most of the velocity is from the spcecraft itself and most hits are in the direction of travel of spacecraft, the ram direction). My suspicion is that MMOD flux in a LEO orbit is still going to be far far worse.
[0] https://www.nasa.gov/ames/ladee-project-scientist-update-mil...
Edit: The paper talks about flux of particles 10 um and smaller of about 10,000 impacts/m^2 during the passes. If we assume that this is a sphere of iron (new MMOD fluxes are specified in mass, not size) its ~5e-9g. In LEO at 400 km altitude (a little above the ISS) the flux of particle this size is ~1000 impacts/m^2/year. But the paper says smaller than <10 um. And at smaller masses the flux increases exponentially to 10^7 particles/m^2/year at a particle mass of 10^-18 g. So I believe my suspicion is correct that most LEO orbits are still worse, but its hard to compare apples to apples.