There are plenty of times you will be stuck with platform in one setting when you don't use it otherwise. Obviously, in this situation, it's better to focus on

There are plenty of times you will be stuck with platform in one setting when you don't use it otherwise. Obviously, in this situation, it's better to focus on something that will run on both platforms, even if it can be iffy on one of them. The grandparent clearly frames it like this; "if you're stuck with Windows...". He's not saying "If Windows is your choice of operating system...".