I agree. I just read the study since I was unfamiliar with it, and if anything, SBRT was fractionally better than IMRT in this respect.
The purpose of the study was to ascertain if SBRT was “not inferior” to conventional radiation and the conclusion was that it WAS NOT inferior. They might both have SE’s but not one greater than the other.
Do agree, however, that MRI guided SBRT is better in many ways.