Ultimately, if someone is trying to play on 32-bit Windows, they're gonna have a bad time That's all the average player really has to take away from this.
Sure, the conclusion is right. I just felt that this is worth mentioning for the sake of correctness. Especially as everybody who still uses 32-bit system must have learned this the hard way after trying to install 4gb of memory and getting only 3. So actually anybody who reads that 32-bit section will know that it is not true, even if he doesn't know why intel did it that way in their architecture.