These are still the biggest in the simple sense of the word. I'm sure these guys already lost a pretty penny on these games before hitting the one time, big time jackpot of their lives with only a little $$ at stake. But that doesn't matter if we're looking at these figures as-is. They are still huge at their own merit and difficult to top any time soon. Even I am wondering when will I be able to hit such huge jackpots with just a small amount of bet. Tried doing this through parlay but a lot of times I'm just left with an 'almost' winning ticket with a leg or two losing.
With the calculation of the initial capital compared to the profits there, it is clear that this is still very large.
But it's like you said, apart from their profits there are definitely losses before or after which it's not said because even though there is some luck that does happen in gambling but it is clear when you say gambling we must feel the loss first before luck comes.