I definitely agree with the second idea. That start of turn is specifically called natural healomancy, and we also know that it takes a dollamancer to heal golems, not a healomancer, so the natural healomancy would not apply. Given that dolls will be more of a high power, but expendable force, that turns it into a choice of preservation of units versus heedless charge.
The limit on numbers is something I'm not sure about, but I can see the obvious reason as to why considering if you have no limit you could potentially build up a huge force of free, powerful units. Then again we go back to the above in regards to choice of preservation against recklessness, so if you can build up a big force of golems and keep them, then hey, you deserve it. No force is unbeatable after all, it would just require a stronger force or more tactical thinking. Just depends if you can look ahead and see if such an option WOULD make it an unbeatable force. Course, something of that size would, I imagine, take quite some time to build up especially if the dollamancer isn't that high of a level, which goes back to you deserve it if you can make it.
With the dawning of each new day, my evil machinations inch me closer to world domination. And also breakfast.