I brought that up as a complicating factor. However, I think the fact that we are looking at raw numbers rather than population-adjusted rates probably counteracts the statistical effect of higher survival rates.
It's probably impossible to get the numbers that allow us to determine whether "intentional attacks on LEOs as LEOs" are increasing or decreasing. That would have to exclude all accidents/illness and all attacks that were personal or random, rather than professional and targeted, while including attacks, including vehicular attacks, that did not result in death or significant injury.

I had to change browsers. I rehosted it in case others have the same problem.
The statistics appear to be absolute rather than per capita, so that means officer deaths are way down compared to past years.
It's worth noting that traffic accidents kill about as many officers as guns.
“It’s probably impossible to get the numbers that allow us to determine whether “intentional attacks on LEOs as LEOs” are increasing or decreasing. “
It really isn’t impossible. In fact it’s rather easy. And this data goes all the way back to the OK Corral days. Felony level assaults are the highest America has ever seen. If you norm out for the effect of modern communications (most cops in 1960 didn’t carry a radio) medicine, EMS, transportation, modern surgical techniques, antibiotics, and modern protective equipment, this is a very violent time in America.
And this violence surge it is distributed very unevenly. It is centered in around 10 major greater urban centers. Without them, the rest of America is about as violent as Switzerland.
Stick to taxes.