Something with companions is broken, either their "power" level or their AI should be addressed.
They are definitely weaker compared to pre 7.0, which wouldn't be a huge issue by itself, but at random times they simply forget what they should be doing. Multiple times I encounter them just simply stopping to heal and refusing to begin again, causing me to die.
Also, I didn't spend millions per companion to have them neutered this severely. So, either fix their AI, or if you can't do that, revert them back to pre 7.0 and add a toggle button to neuter them if people want to.