Fashion? No, it's for communication, communicating emotions. You're hung up on the emoji, thinking I'm upset about the emoji changing. It's just another grain of sand in this hourglass of ridiculousness. Like the people rewatching old Simpsons episodes, trying to find everything that's offensive and kicking up dirt over it.
Do you know what they are butthurt about? They are butthurt because they're claiming that she is fat shaming Sara H Sanders, among a few other things.
Political Correctness: the avoidance, often considered as taken to extremes, of forms of expression or action that are perceived to exclude, marginalize, or insult groups of people who are socially disadvantaged or discriminated against.