No, that report actually mentions the cavity and does note the decay in the cavity as well. However, that was done in early May, so the tree hadn't leafed out. It's noted in the limitations of that assessment that there were no leaves on the tree at that point. Whether the cavity was directly influencing the tree's ability to sustain a healthy canopy in that part of the tree at that point wouldn't have been measurable.
On April 2nd, 2019. See this statement in context.