2 million is 2 million, if it's 1% of the potential userbase doesn't matter as it's a huge seller compared to the market.
It covers the cost of the games development and ensures a sequel. By your logic 99% of PS2 games were flops as they didn't sell to most of the user base?
So you hate all things Sony not just the fans/ I had a PS2 and if a game sold 30mil or 2 mil to the 140 million userbase it sold enough in my books.