Check your facts and make legitimate apples-to-apples comparisons. The number direct deaths attributed to Katrina was 1,836. The comparable number attributed to Maria was 64. The statistically estimated total excess mortality from both events is much higher. The number for Katrina pushes 10,000 and even that is understated because some former NOLA residents who died elsewhere may not have been fully counted. The ststistical excess mortality number for Maria has been estimated at 2,975. Please compare the statistical excess mortality figures for both if you want a valid comparison.
An interesting point is that more money per capita was spent in the six months following the storm for Puerto Rico after Maria than for NOLA after Katrina. It took years for NOLA to recover. Go take a trip to Puerto Rico and you find large portions of the island’s infrastructure have been repaired or rebuilt. Certainly much more needs to be done, but the picture you paint of forgotten devastation is not accurate. This is not to minimize the damage or deaths in Puerto Rico, but just to point out the error you made in comparing two different types of statistics between two different storms.