The hot air running into other components thing has long been an anxiety in the PC space, but it's not something to worry about. Like if you have a liquid cooler with a radiator mounted in the front taking in air, and the heated up air from that goes through the components before exhausting out the back. It will have a very slight effect on say the GPU cooling as opposed to just firing clean ambient air through the GPU heatsink, but it's still airflow and the heatsinks in the way will do their job of dissipating the heat into the air.
Basically warm air flowing over a heatsink is much better than no airflow, and probably only a few degrees hotter than using cool air.
If it's got lovely holes at the top to exhaust the air it's whiffling then I've yet to see the handy dandy big ol' inlets to get the air in.
Given the amount of holes it's exhausting at the top and the fact it seems to sit flush on the surface its got to be very holey round the back there on it's bottom section? Right?
Not the actual bottom obviously but the imaginary bottom arse crack sort of area that it has if you imagine it kind of sitting upright with amputated legs... And arms...
Yeah the intake is a bit of a concern still. I would hope they haven't been daft enough to only leave a few MM of clearance for the bottom vents... It would be embarrassing if there was a bunch of stories come launch about fixing thermals and noise just by raising it up on four Jenga blocks.