How does it work!

Hey all, just started following this stock and without doing much research a few points came to mind

1. There are not many houses being built using bricks these days as it is much cheaper to use other materials which can be rendered. Therefore, what purpose would this giant machine have in those situations.
2. watching a few videos it doesn't seem like there is any adhesive (usually cement) being used to hold the bricks together. I don't quite understand how that will all work
3. In many situations it would only take a team of 3-4 brick layers 3 days to complete an entire house . I assume that it would cost exponentially more to hire a Hadrian

Simply I do not see a bull case for this product/service.
This is just my opinion again, I have not done much research these are just a few points that came to mind I thought would be worthwhile discussing.