Rather, the amateur community has allowed miscreants of all sorts to spoil the DXing game.
"Allowed"? You write as if this is a new thing. It assuredly is not.
We have seen jamming of FT8, which is a new thing. The rest was depressingly normal. But even with the attempts to jam FT8, I would
strongly advocate that any expedition activate FT8 F&H as the
first priority.
In the extreme conditions the team found itself faced with, it elected to go CW first, no doubt as an attempt to maximize the Q rate. Maybe the choice they made did exactly that. The goal is maximum Q rate; discouraging the crazies is only one factor.
But their choices also encouraged 1989 levels of jamming and bad behavior.
This is why I would suggest FT8 first if the rates are remotely similar.
I have noticed that many expeditions that go FT8 first discourage the jammers with alacrity. The jammers don't get to hear their wonderful voices making snide comments on SSB. They don't seem to get the same kind of pleasure from dumping a "buzz" signal on top of the CW op. And so on. They know that their activities are not only going to fail, they are not going to get
heard. So, they don't get any on the air ego strokes (which for many/most, seems to somehow be a key factor).
On FT8, even if they do jam, people barely notice they are there. As long as the QSOs go in the log, it is less than worthless because it goes unheard.
The way bad behavior is discouraged (the way it has always been discouraged) is for the expedition to show that no matter what the crazies do, they can put people in the log at high rates.
Once that is demonstrated, the crazies go away. Because 3Y0J could not put up the typical strong DXpedition station, that did not happen here. So, we got more crazy and for longer.
Even 500 watts to a two element vertical array might have made a big difference for corralling the crazies.
This is not meant as any kind of indictment of the 3Y0J team. They were operating far outside of their plan in an unforgiving place. They had to make, and live with, decisions in real time, not three weeks later. They made about 19000 people happy. That's not nothing.