One small quibble
Why do you assert that 'solo play isn't a major part of the game'?
The devs have said that they made Dom primarilly to be an MP game, but the number of people playing the game are likely to play more SP than MP, whatever it is that they would prefer to play.
So I would assert that 'solo play *is* a major part of the game' just that the devs may not desire to make upgrades to it as much as they desire to make upgrades to MP. Though outside of balance and bugs, there arn't that many upgrades to MP that are seemingly *that* important
