Should not make any difference. May be a manufacturer thing. I have seen both styles for the same year car. Could also have something to do with pad composition or break-in wear characteristics. Doubt is was done by the installer. Who has the time, and why would they do that anyway??
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.