I've played both sides now, and tech is definitely easier. Workers can pull more gold and stone out of the ground (25 vs 20) to start than initiates, and you can jump start the number of workers more quickly than initiates because food is a consumable rather than a static item, so you can over produce and then build farms to catch up later. I've gotten 15 workers going before I built a farm, whereas you can only start with nine initiates before you *have* to build an energy source.
Then you have to take initiates out of action further to build more energy sources, whereas farms are self sufficient once started - you just need gold, which workers are better at anyway.
Regeneration *can* help Magic in battles, but typically Magic has less hitpoints anyway, and the dead don't regenerate. By the time a battle has gone on long enough for regeneration to be a factor, you're dead already
Pug