it's great that someone has written a paper and given all this info out, but at the end of the day it boils down to two actions, do something or do nothing end off.
if hornets or wasps find your hives, they will continue to return whether you do anything, is down to the individual, the first year I spotted the hornets I did nothing, let nature get on with it, only the strongest survive, and coming into the new season I had only lost one hive, if the hornets/wasps had any effect on that hive I'll never know, it could have died from a multitude of reasons,
this year having more hives I saw a lot more hornets and wasps before adding traps and then only two traps on only one apiary (I have two areas in the woods)
traps with the wrong sized next may not work, but then that's down to the maker, rather than saying traps don't work
and having a full trap shows that they are catching, if they were not there, than the hornets/wasps would still be there in higher numbers, unless you find and remove the nest then eradication will never be possible, but you can dilute it, and by diluting a strong attack your giving a chance to a weaker hive
who knows for sure?? no one can, at apiaries that only get a visit once a week, some people feel doing something is better than doing nothing, at the end of the day, it does not matter how many papers have been written, it's down to the individual whether they do something or not, and whether that has any effect on the problem or not
there are many things in beekeeping that beeks will never agree on, and probably papers have been written on most of them too, yet people still do what goes against someone else's ideas.
I'll leave it at that, the keyboard warriors and trolls can continue to have their say on why it's a bad thing, they need to feel they have some use in life