I have never yet seen a compatible brick that actually snaps together and loose again with the… Let’s call it snappiness… Of real Lego bricks. There are better and worse ones but they all suck. Presumably due to looser tolerances.
Having a TM logo on their bricks doesn’t prevent someone making duplicates. They’ve challenged companies on patent grounds, but I can’t see them going after individuals. Hence my incredulity at “letting”. It’s not their place to “let” or “not let” someone make bricks in their own house.
I’m suspicious of this report. Lego just became the most profitable toy company in the world. They certainly aren’t hurting for cash. If they did this it would probably be for customization, ie: design your own mini fig.