Sounds like maybe your provider should be using the "level of urge to avoid" scale rather than the SUDS scale, or maybe some IFS to separate protectors from trauma holding parts.Because my main issue is cognitive distortions based on my no shits given approach to trauma. So it's been suggested as a way to break through my avoidance.
And as for digging around to find issues, I am not. And I find the implication judgemental, even though I assume it's from a lack of knowledge about my situation. My issues exist, I can't get past my defence mechanisms. So emdr was suggested
As others said, EMDR is hard for those who are used to avoiding the affect, images and sensations, and then are faced with them, sometimes full force. EMDR can also be hard if you're used to mentalizing or intellectualizing everything, bc it can make you deal with the body. If you hide from the body by staying in your head this can be rough. And also, it can cause dissociation. Hard to process traumas when you're not present at all.
I tend to present to therapists as healthier and better functioning than I am, and I recall working with a new person, specifically requesting EMDR. And we went too fast the first time, I had to sit in my car for 30 minutes or more bc I was too dissociated to drive. That's having the body of knowledge about how EMDR works, what it feels like, not being intentionally avoidant of my emotions, etc. Even knowing what I know I went too fast, didn't have enough safety, and it messed things up. If I had any consistent self harm tendencies it could exacerbate those too.