I don’t quite see what either of these hands say about rank or the site being rigged. It is unlucky,but big pairs always lose big pots to flopped sets (I’ve lost to a flopped set half the time I’ve played live, which, admittedly, is not many times).
As for the other hand, yeah it didn’t make sense, but neither does min-raising or min-3betting like the other players in the hand did. He only had 15 bbs, so he either thought he could get some folds, or that he had 2 live cards and just wanted out of the tournament. Also, the player in that hand appears to be ranked ~2500, which is around the threshold of players who are actually trying to win and where differentiation by rank begins to be useful, so I would not assume a player of that rank is very good.
I will not defend the skill of any particular player on Replay, no matter their rank, but given what little information we have about our opponents, the number of chips in their bankroll is still very predictive of their ability, at least as the ranks get better. Playing in 20k/40k ring, it is easy to spot the difference between the 400-ranked player and the 40-ranked player. I don’t play buy-ins under 50k much anymore because a lot of players just aren’t trying. It is easy to beat players who play that way, it just isn’t as much fun. As I move up the stakes on Replay, I realize that a lot of the better players aren’t that great either. They mostly just play ABC poker, don’t make too many mistakes, and know how to get value from their opponent’s mistakes, but they are exploitable. I’d group the players on Replay in bands from 900,000 to 20,000, 20,000 to 5,000, 5,000 to 2,500, 2,500 to 1,000, 1,000 to 500, 500 to 300, 300 to 150, 150 to 80, 80 to 30, 30 to 12, and then there is probably even more clear differentiation among the top players because they have way more chips than everybody else and probably play short-handed games against each other (but I am not at that level, so I could not say for sure). These rankings are not a sure thing and don’t say anything about style of play, but in terms of predicting ranges and the types of mistakes someone is likely to make, they are very useful starting points.
Also, I’m no expert on the world’s top poker players, though I watch the WSOP and the former EPT, but I definitely don’t think Antonio Esfandiari is a bad player. Maybe he is not on par with the elite players of today (the game seems to have changed in the past five years). I don’t even know if he still plays in a lot of tournaments anymore, but he definitely was one of the better live tournament players out there. The prize pools on Replay don’t shift the way they do in real life.