In some ways, on small maps I also don't agree with his "energy on demand" policy of building the right amount of energy. On small maps I put one engineer on pgen spam at the right time which sustains me for the game and if I have too much excess energy I pause it and unpause it when I know I am gonna need some more energy or add an engineer or two when I need to increase production. Like if I want to go T2 Com or GunCom or T2 land/air.
I think the method of having a continuous spam going on (whether it is a drip feed with one engy or a mass spam with three to four engys) is better from a macro point of view. In this game you should get in to the habit of always growing your economy before you cut back on stuff. Don't have enough mass due to pgen spam? Look for some reclaim before you cut back on pgen spam (assuming you are pgen spamming for a good reason!). Stalling upgrading that mex? Again, look for some reclaim and/or rebuild mexes before you even think of pausing it or cutting back elsewhere.
By the way, along with TAG_ROCK, ZLO is one of the nicest pros out there and I have a lot of respect for him, but I just wanted to get this off my chest as I have been watching cast after cast and it has been bothering me. Oh yeah and I can do a perfect imitation of the stereotypical Russian accent he has now