Is there anything wrong with filing the front brake pad ears?

Just curious as I've already done it to one pad. I had already did some research and found that it is commonplace to do so. Just looking for more opinions before continuing further.

Basically, I bought some brake pads and they barely fit with the old clips, and absolutely wouldn't go on with the new clips. There wasn't a lot of rust or corrosion either. I did take a metal brush with some brake cleaner and tried to clean out the bracket and the old clips.Still no luck, even with the new clips.

I drive a 2004 ford Explorer 4.6l AWD/4WD and the pads are Duralast Gold Ceramic Brakes for the front axel. I didn't finish the job as I ran into this issue. I've filed down the ears off of one pad just enough to remove the "paint" or coating. Will try it out in a couple days when it warms back up.

Thanks for any help!
Added (1). Just wanted to give advance that I do know that removing material off the ears makes it vulnerable to rust and corrosion. I've heard that brake grease will take care of that. These bakes are merely temporary until next summer when I can afford higher quality brakes.
Added (2). One more update. THEY ARE THE CORRECT PADS. I'VE TAKEN THEM BACK TWICE TO TWO DIFFERENT PARTS STORES AND THEY ARE A MATCH TO MY MAKE, MODEL, ENGINE, AND DRIVETRAIN.

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