I find the strategies of such dramatic savings of farm space and points to be rather laughable to be honest. The only circumstances where it makes enough difference are circumstances where it doesn't matter anymore. Where's the logic?
Buildings are equally useful in this game as troops. You can't have one without the other. As troops come and go, it's the buildings that stay, with the exception of catapults. It's the buildings that build the troops, so it's a give and take scenario. Those who sacrifice Barracks, Stable or Workshop levels for troop space, aren't using their troops enough. Those who sacrifice mine levels for troop space, aren't spending their resources appropriately. Those who underestimate the usefulness of a hiding place, have never been attacked before.
Allow me to remind those of you who are reading this, of a simple fact. The purpose of a village build is to have a default goal to always aim for in every village, and thus it needs to be as good as possible overall, for every situation.
Decreasing mines? Nope, resources are too valuable.
No hiding place? 80 points, 8 population for 2,000 of each resource, when under attack, that seems like a pretty fair deal to me.
Decreasing HQ? Yes, let's not bother with a quickly rebuilding wall.
Low Workshop? Well, if you find yourself needing catapults or rams quicker than thirty minutes per unit, then don't come bugging to me.
And I could go on.
The only buildings I would ever find reasonable to demolish or have at a lower level are the Market or the Warehouse. If you're going to go further than that, you best scrap the whole idea of a village build, because it's not what you're looking for.
Troops, Buildings, Market Offers and Hauls equal Resources. Troops, Buildings and Commands equal Time. Resources and Time equal Growth. Troops and Buildings take Farm Space.
Buildings add Points and take Time, add Resources and take Farm Space.
Thus, Buildings give this equation:
Buildings: Add Points + Take Farm Space -> Take Time + Add Resources + Take Farm Space
Buildings: Add Points + Take Farm Space -> Growth + Take Farm Space
Focusing solely on one aspect of the game will lead you to struggle, and do less than you could otherwise. Troops aren't everything, and that's a fact. Just like in war, being a fighter will only go so far, the man who can motivate others to fight for him and can also fight, will end up higher than the man who fights on his own because he focused on more than one aspect of war.
Same can be said in village builds. Most only focus on Points and Farm Space, but the best players, you'll find focus on overall Growth. Both focus on troops, but Growth includes more than Points and Farm Space.