The most central position (being the left one) is space, the other one is . : / (Implied here that a more central space is a more usable one, since thats where your right thumb is coming from, and less distance traveled, is better)
The usable space is akin to the same way the enter/return key isnt shaped in a traditional way. Because it isnt on a traditional 10-finger keyboard. Havent seen anyone complain about that on the pandora. Because the pandora, like the pyra, is a two-thumb keyboard. It is very possible
to get this wrong. The ogo wastes key-estate on the enter-key. Note however that the wideness of the space has merit, because you can reach it with both hands. Each end is more central to each thumb than the middle would be, and also you can move straight down.
That way of doing it is good from getting to space from comma. Or dot to space. But they failed at getting from dot to enter. And they also lack the shift you need in between getting from dot to space.
Other than recognizability, there isnt a reason to make it a long-space if it is in a non-central position.
Now if we go into the details, lets see what actually happens. Looking at
the PCB it isnt actually made to be pressed in the middle. Because there is no point of contact directly underneath it, like on a regular keyboard.
To my knowledge, there arent any support-structure in place (like the stabilizers on an actual space_bar_
1 2 or
keys that are more than 1-wide) to make sure the travel isnt the uneven wonkyness it is on the pandora. Make the key longer, like on the pyra, and you worsen the problem.
Membranes collapse unevenly if you happen to move the actuation away from the centre. There is no stem to fit in a slider.
Now if you press it the wrong way, it will bottom out on one side before the other. Try it on the pandora.
TL;DR if something is different from a space-bar, for how a space-bar makes sense, its the long key you find on a pandora.
Edit: Added some meat to the argument.