I wouldn't change a thing. That then wouldn't be fair to other players who possibly get great scores in that category, but not in others. The game/games are fine as they are.
I complain now and then about assorted ones (and I'm still whinging about that high number of points required in a day). We even have a thread in our team room to moan and groan about various games, or missing out on such and such by THAT much etc. Ultimately, though, it's the challenge that's the fun, not so much the arrival.
Gaining a difficult badge is a real thrill, but then...but then...after the laurel wreath has lost its leaves, there's no more badge left to chase, alas.
There has to be an old proverb somewhere that says beware of dreams that come true. Maybe it's even a Hindu one.
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"Beauty is fleeting, its memory timeless"...Eidhneach O'Diomasaigh