I like that design too. An advantage of this design is it can remain vertical with a heavy CPU heatsink (the XTIA needs to be laid down). I also suspect the graphics card will be cooler with more airspace (I intend to put this hypothesis to the test soon). It's also not clear if they support attaching hard drives? And lastly, I anticipate this one will be cheaper all things considered (e.g. not requiring an SFX power supply) and US-made.
You can use https://squoosh.app for easy and effective image compression. Sometimes I can shave off 80-90% of the size without a noticeable difference in image quality.