Basically I mention possible scar tissue/adhesion because in the past so many jumped into surgery with any surgeon that suggested it ,and no understanding of possible risks and thinking " dr X says I need surgery - that all will be 100% fixed.".
And sometimes it did fix it and sometimes it didn't and a few times it was a total failure.
Or they were OK for a few months and for what ever reason sx came back..

I do think there are many more qualified surgeons that can expertly handle TOS surgeries than there was back in 04 when I started learning about it.