No, it really isn't. I have done a life coaching introductory course, and they distinguished between therapists and life coaches by saying that coaching is for the 'worried well'. Clients who want to figure out why they can't motivate themselves to open the business they've always dreamed of, or run that half marathon they've wanted to do for ages, etc. That sort of stuff.

Life coaching has no business meddling with trauma and attachment, in my opinion. That's not to say somebody who is trying to rebuild their life who is seeing an appropriate therapist to deal with their trauma cannot also see a coach to get help making steps with their career or other elements of life, etc. But they are very different and fulfill very different needs.