I know, sometime Thai hospital website have confusing details right, that may be because sometime the one who wrote and do the website are the hospital staffs. And many times two different hospitals have different names on the same technique...
From the video, that is one of the common brow and forehead shaving procedure. And yes, most good surgeons in Thailand do that. And different surgeons have slightly different skill on performing, cause doing this involving artistic skill of the surgeon as well. Also depend on how your forehead and brow condition is, some have thick some have thin one. Mostly surgeons will be able to reduce the brow by 4-5 mm. from what I seen.
And for the augmentation, it's depend on individual cases, some need to lower the brow and increase the forehead, some just need to lower the brows and a bit of forehead shaving. In you case if you just need to lower the brows include sinus bone and shave the forehead then surgeons will not do augmentation. You can tell surgeon on what you need and what you don't need and your expectation on the outcome. With Kamol experiences, I think he can do what you need, forehead and brow shaving without augmentation.
And the sample photo of past work, mostly hospital will publish few picture on their website. Usually they will show you the sample that match your need during consultation.