The greater strength is achieved by turning concrete into a composite material with the addition of steel or other fibers.

Fiber reinforcment is thousands of years old.

So I did not read the article because of a paywall I'm too lazy to circumvent right now

But from OP's summary, the main technology they're talking about is concrete reinforced with steel or other fibers.

And that's definitely more advanced than "pyramid age"

But it's also pretty much a direct descendant of mud brick reinforced with straw which humanity has been using since well before the pyramids. Same basic concept, different materials.

So yes and no.

Egyptians stacked blocks of stone to build the pyramids.

Roman concrete was impressively strong.

Neither of them had steel-reinforced concrete.

Neither did Gothic cathedrals, which is why they needed flying buttresses.

Reinforced concrete as we know it today is a 19th century innovation, as I understand it.

https://en.wikipedia.org/wiki/Reinforced_concrete?wprov=sfla1

Maybe the commenter was thinking of adobe.

These bombs are not just dead weights. These bunker busters are equipped with precision guidance and fly to and hit a person on the head if they desired. It's also designed to deliver a huge explosion AFTER it penetrates with the kinetic impact.

It can also be set to explode right before impact, like Israel really likes to do when attaching residential high-rises, to deliver maximum destruction and death.