XLR mics wired Pin 1 and 3 only. (unbalanced?)

On cheap karoke mics, they use Pin 1 (black) and 2 (red) with no transformer. Is this for max compatability with cheap XLR to 1/4 and 1/8 cables I assume?

Would swapping the capsule negative from shield (1) to pin as 2 as - (black) and leaving pin 3 (red), in the case of metal housing grounding 1 to the connector tab at the top -

Would this not balance the signal?

Both would transmit erronious phantom, but why do they default unbalanced? Any idea what they were thinking at these asian factories?