Meep-meep?

Why is that? There's no reason that I can think of why one couldn't just decide how the creatures would flock using simple stick figures then add the rest of the models later.

In any case, we're in no position to judge how accurately a film recreated the behaviours of creatures that haven't been found in the wild for millions of years. Certainly we can infer a lot based on what we can observe in their distant descendants but it's still one of those things that takes some dramatic license (just like Lego genetics and the noise that a roaring T-Rex makes).

Everyone knows the best laws are the ones rushed through the commons and passed on the nod in the other place.

From TFA:

Paedophiles are a threat to national security now? Organised crime? Maybe, but for heaven's sake how stupid does this government think we are, that we would swallow yet another use of pedophiles as the bogeymen du jour? That was a rhetorical question, it's not a question of stupidity as much as it is voter apathy coming back to bite us in our collective backside. Again.

This person is supposed to be a professional writer?

In an SLM machine you have a cavity that is filled with a fine metal powder, the laser selectively melts/sinters parts of that, the base of the cavity moves down slightly and more powder is added to the top. Rinse and repeat until you have a solid part in the cavity surrounded by the powder that wasn't touched by the laser. I'm not going to cop-out and give a link to wikipedia, but if you go there and only look at the block diagram you'll see why the bed needs to be moved with precision at least equal to the minimum feature size that you're aiming for.

What this project aims to achieve is akin to 3D printed plastics where the raw material is deposited right where it needs to be instead of selectively converting parts of a much larger amount of feedstock. I suppose you could move the laser if you want, but it on the face of it I think it would be simpler to just use a few mirrors attached to servos to direct the beam where it needs to go.

Not to me, and I am one of them.
"One of them", however, gives me pause as the us vs. them mentality always seems to end badly.

The top of his blog post says "using ... a TIG machine". TIG welding is not the same as MIG welding: with MIG the wire is one of the electrodes and is fed using a variable speed motor through the torch, with TIG the wire is held separately in one hand in much the same way as it is with brazing and the torch is in the other hand. I think he's used parts of a TIG welding machine because that's what he happened to have. There's no reason I can think of why the same couldn't be accomplished using a MIG welder.

Of course this would be easily settled if the video showed the machine in action or the blog had any sort of description or diagram of how the machine works on either of the two pages.