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"The condominium board of directors needs to answer for this one. Let’s see the most recent facilities audit."

Yup!

If you haven't already, have a look at a report from a PE in 2018.

""At the ground level of the complex, vehicles can drive in next to a pool deck where residents would lounge in the sun. Mr. Morabito in 2018 said that the waterproofing below the pool deck and entrance drive was failing, “causing major structural damage to the concrete structural slab below these areas.”

The report added that “failure to replace the waterproofing in the near future will cause the extent of the concrete deterioration to expand exponentially.”

The problem, he said, was that the waterproofing was laid on a concrete slab that was flat, not sloped in a way that would allow water to run off, an issue he called a “major error” in the original design. The replacement would be “extremely expensive,” he warned, and cause a major disturbance to residents."

And that area of the worst structural issues he found sure looks like it's right in the area where the building collapsed first. Near the pool area.

The most significant structural issues begin around page 7 of his 2018 report.

The PE's report from 2018 talked about the deterioration expanding "exponentially."

For those of us who are not PE's, this article explains concrete "spalling."

CONCRETE SPALLING
There are many causes of concrete spalling; they include the improper placement of concrete and its reinforcing, electrochemical (galvanic) reactions between embedded metals within the concrete matrix, and corrosion of embedded reinforcing steel due to exposure to water and/or chemicals. This article will address concrete spalling as a result of corrosion of its steel reinforcing and how concrete placement and its exposure can affect the corrosion process.
WHAT IS CONCRETE SPALLING AND WHAT ARE ITS EFFECTS?
A spall is defined as flakes of material that are broken off of a larger solid body. Concrete spalling typically begins when the steel reinforcing embedded within the concrete member rusts. Contrary to popular belief, concrete is porous. Rusting of the embedded steel reinforcing occurs when that reinforcing bar is exposed to water and air; without both of these elements, the steel bar does not rust. When exposed to both of those elements, a chemical reaction takes place wherein iron oxide (rust) is produced. The production of iron oxide includes a volumetric expansion of the bar by up to 6 times the original volume, and that increase in volume imposes significant expansive forces upon the surrounding concrete. These expansive forces can cause the concrete to delaminate or to crack, spall, and break off. An illustration of this is shown below:
Delamination and spalling of a concrete member are both undesirable conditions; not only do they represent a potential struck-by hazard in the scenario where the spalled concrete falls and strikes a person, but they also reduce the cross sectional area of the concrete member and decrease its ability to safely carry imposed loads. An additional consideration is that both delamination and spalling offer increased access of air and water to the reinforcing steel within that member; thus creating a cycle of corrosion and increased access of the corrosive elements exacerbating the process with each subsequent cycle.
Beyond the obvious aesthetic issues, a reduction in the cross sectional area due to spalling and delamination is synonymous with a weakened concrete section.
The following are examples of how environmental conditions can accelerate the process of corrosion and rust in steel members by exposing the concrete member to aggressive chemical forces:
In coastal regions (areas adjacent to bodies of saltwater), the salt-laden air continuously deposits salt on the surface of the concrete member. These salts dissolve in rainwater and then permeate the concrete matrix along with the water, made chloride-rich and highly caustic by the salt.
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https://www.robsonforensic.com/articles/concrete-spalling-expert-article/