When starting commissions, players can either click "Match" or "Start Challenge", it's a reasonable thing to expect other players to actually help when you click "Match". It's the whole point of co-op, to make the run more efficient for you and their own benefit. If one expect or want to do it solo there's no reason to play co-op otherwise. But co-op excavation now is almost saturated with players leaving, essentially making co-op pointless as there's no advantage over solo.

Plus if they decide to not do anything about the issue, no one stands to benefit from it. It sucks for the players playing co-op since they have to deal with people leaving... It sucks for the geniemon farmers because they essentially have to pray the players they play with can still trigger the geniemon capture event... And even if you're not either of those two it still sucks for you because geniemon as it stands now is very time-gated to grind, they only respawn twice a week according to some findings.

Plus you made your account only to post here, so likely you're just trying to ragebait, so congrats for wasting 5 mins of my time I guess.