That’s the actual LP keybed

I’ve found a source with the actual LP spare keybed.
What’s the purpose of that squared ‘hole’ right below the springs? That’s what shows up every time you press a key, and personally I find it quite annoying as I mentioned, but I don’t know if it has a purpose or it’s designed like that just because?
I’ll keep looking for more sources to see if it’s possible to either replace the stock keybed or somehow cover that hole.
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