I really don’t think that the command line is a uniform interface. Every command has its own syntax, its own take on what its switches mean, its own take on regexes/globs and so on.
Powershell was kind of an answer to that. All commands are supposed to emit objects and take objects as input. For me though it is horribly unintuitive. Id love to see an open source attempt at it, but it would be hard since by necessity every dev works on their own tool, while Microsoft could enforce something because they own all the tools.
White balance is hard, probably Google made a different decision or something as simple as something (another person) blocking some light on one pic vs another.
I bet if op white balances both to the same they will look more similar.