Honey, not only is sugar, but is more fructose and less glucose digesting than most sugars.
"Natural" typically is an irrelevant term. Natural things can both be bad and good for you.
I didn't read the article, but straight sugar syrup, in any form, while trying to lose fat, cannot be good. I don't care if the syrup has traces of clen in it, you'd still be fucking yourself.
Not sure if "before bed" has any relevance as far as CHO consumption, but thats a complex topic for a completely different post.