I’ve mentioned before - perhaps even on this thread - that this is likely true, and doesn’t surprise me. Playing for cash online, you won’t get nearly as many limpers. When every hand sees 4+ players going to a flop, there are going to be a lot of players with weird draws. Furthermore, when people make incredibly small bets postflop, like minbetting out of position into four players, it doesn’t drive people to fold off their draws.
To take the example of the ATs v ATo v A5o hand you posted, if @Igoruvut had opened to 3BB and @hellobunny 3-bet to 8BB, do you think @bubbaluke would have called more than half his stack, or jammed ~15BB, with A5 offsuit, or would that straight have never seen the light of day? By the same token, if @bubbaluke led out with his gutshot on the flop, do @igoruvut and @hellobunny call with overcards, or does he scoop the pot right there?
Almost every board is going to either be paired (allowing for boats or quads), or have flush or straight potential, by the time the river rolls around. The more two-card hands still in play, the more likely someone lucked into the nuts.