This is terrible.
1. the template is the key to building fast, no mather what you say. And it takes 5 minutes to set one up.
2. No, if you want your build to increase in detail level, you have to spend time on it, makes sure that everything fits, and that the details look okey. To just rush through the build is plain stupid. I didn't mention that you should work hours and hours on the same part of the build, I just mentioned that the whole build COULD take days, even weeks to complete. You are right about the perspective thing tho, but I don't know why you even brought that up. :P
You don't seem to understand.
It takes you (as you have said above) 5 minutes to set up a build loadout. I can get a brick loaded in a few seconds.
Beyond that, its a different method. You skip the details
and then you come back after getting the basic layout done and doing most of the grunt work and then do the detail work. It is not rushing through the build, it is doing it in a layer by layer form.
You lay down the first layer that has basically no detail but is the structure of the build. Then you go back and lay down the detail rather than doing the structure and the detail at the same time. This way you can have a better idea of what the build will end up like and try ideas quicker.
The perspective thing is useful for people who are building DMs and Challenges and such, where the player is limited to a certain area. But other than that I did just bring it up for no reason as it was very late at night and I was bored.