Just to be clear, the games finished?
Yes.
Let's say other player placed same bets, they'll win as there is no ruling or event or anything that'll officially void the matches?
Correct.
Only your bets got exclusively voided, manually, by BetFury? Do they also give an explanation why they manually cancel the bets? I peeked at their ToS and I do find an extensive explanation that cover their right to void bets, such as, but not limited to, as below:
Yes.
Do they also give an explanation why they manually cancel the bets?
They say they can cancel any user bet.
I peeked at their ToS and I do find an extensive explanation that cover their right to void bets, such as, but not limited to, as below:
That is their primary claim, they can cancel any user bet, end of story. They also make some wild claims that "in my case, the events weren't finished". These are purely false. Events either finished or did not, there is no "my case" or anyone else's. And in this case, all the events finished normally.

Hmm... I'd like to contend this ruling they made with "the bets technically finished. It got unfinished just because you cancelled it. Otherwise, it'll be finished." They're with Betby, though, and I guess it's one of their yet another mischief. They've been stirring some problems across casinos with questionable rulings and decisions for the past couple of weeks.
Nonetheless, let me try to nudge them here and try to get their side heard.