If they are set up correctly, they are toed. What do you mean by "need for this"? Brakes need to be toed. Dual caliper brakes need to be toed. Park Tools is saying if you are using the cheap pads that don't have that capability, then don't try to bend the calipers like was done with the old thin, single pivot calipers.

Not sure what you mean by not enough space. I run my pads very close to the rims. I like the pads to contact as soon as I start to pull on the levers. There is always enough space, you still place the pads however far way you like.

The only linear brake pads that don't get toed are the asymmetrical pads. Since the longer half can negate the twisting of the pads. But even then, I found a little bit of toe helps.