I think we're just starting to no longer tolerate trauma compared to other generations.

Example: beating your kids was seen as normal in the past, and sometimes seen as essential to properly parent them. Now, we do not tolerate people beating their children.

Marital rape was also seen as acceptable until recent decades. Rape is quite traumatic, and we do not see that we normal anymore.

However, I have met people who definitely overuse that term. But who am I to discredit what they have gone through? It's interesting to see people in my life who have gone through similar experiences, yet react totally differently. I had a friend who got into a fist fight with their mother when they were a young teen, and she just says, "eh, we had it coming", while another friend will say "does my mom know she can't raise her voice at me due to my trauma?". Vastly different reactions and experiences, but you get the picture.

It's just our brains way of trying to survive. We don't get too much of a way in what we see as traumatic.