Yes it will make a difference. In front of the maf there's the safety factor of the maf screens catching any plastic parts that might break off the temp sensor and keep them from going through the turbo.
After the maf, there's nothing to catch the parts before being ingested by the turbo. If you look at the sensor you'll see a little plastic cage over the sensor device.
Those that run mafless put it up near or after the throttle body (because speed density needs to know the temp of the air going into the motor). But the engine can eat up and spit out those parts. The turbo can't.