I don't see a problem with the way the scores add up to create the final list. It is what it is. Maybe it needs more promotion to get more votes. That could help the diversity.
Trying to change the scoring sounds like a recipe for very weird results to come out that doesn't really align with the voting.
Switch Code: SW-7377-9189-3397 -- Nintendo Network ID: theRepublic -- Steam ID: theRepublic
Now Playing
Switch - Super Mario Maker 2 (2019)
Switch - The Legend of Zelda: Link's Awakening (2019)
Switch - Bastion (2011/2018)
3DS - Star Fox 64 3D (2011)
3DS - Phoenix Wright: Ace Attorney (Trilogy) (2005/2014)
Wii U - Darksiders: Warmastered Edition (2010/2017)
Mobile - The Simpson's Tapped Out and Yugioh Duel Links
PC - Deep Rock Galactic (2020)