I dont ride much gravel & have used these type filters on several bikes without any issues.
2004 & 2006 DL650 VStroms ..both with over 80k miles & running great when sold.
2011 DL650 with 35k when sold
2014 Tenere with 44k when traded.
I checked the airbox for dust infiltration each time I cleaned the filters & found none.
I was going to install this filter on my last Tenere...but when I checked the filter ..it was still clean. Then I sold that bike in Sept.