Singdam's knees edged out his score for a win IMO. But corrupt judging isn't impossible. I actually think that Thai judging is intuitive if you study it enough. But what's interesting is that it changes over the decades, golden era judging (late 1980s - mid 1990s) was different from the 1960s to 1970s judging... and the post 2010 judging is wildly different as well (for the worse unfortunately)
Buck Canon Lerdsila should ve won after thai rules too, he showed more special techniques, his fighting looked more beautiful and he landed better quality shots