For the record. So I've watched the PBS video now.
The one mayor with the requested generators on the video (@ around 8mins) FEMA said they don't have any generators and they have to build them. (These aren't the kind of generators you run down to the store to buy, they're typically built to spec when ordered.) Around this same time in the video our guys are saying it'd be at least 7 months to get power back.
@ 9mins you'll hear about the absolutely worthless system PR had, and what we're doing to fix it... or I should probably say, replace it because the old system is basically gone. Watch through to about 11:30 and you'll hear about the neglect of their power plants spanning back decades; routine maintenance ignored, rusty parts left instead of replaced, etc.
[11:30 through 31:44 are basically complaining that Bill Clinton phased out the corporate tax benefits which caused them to leave PR, which then in turn caused the gov to have less money, then the people protested over reduced spending, so PR decided to just keep spending, gov selling PR bonds and borrowing money from banks to cover their debt.]
@37:00 they investigated "the tarp mystery" and found that FEMA had about 12k tarps. The FEMA guy notes that it takes 7 days "or sometimes longer" to even get tarps to the island - which if you watch the previous 5mins you'll hear the disaster worker note that they needed tarps in 24-48 hours to prevent damage to possibly savable homes (aka the damage was done before the tarps could even get there -- so basically this entire section of the video is bitching about a logistical impossibility. @ around 41:10 you'll hear about a separate "tarp" program run by the Army, basically they put sheets of plastic on roofs which is the same thing the tarps were intended to be used for, they note that their local area tarps (aka the ones that were stored in PR) plus the previous stock pile had been depleted due to Erma (Erma hit the Virgin Islands September 6, 2017 -- Hurricane Maria hit PR on September 20, 2017 -- so yeah, fault the US for failing to replenish emergency tarp supplies during the 14 days between the two devastating cat 5 hurricanes... ******* hell...)
You can pretty much stop watching at this point - from here on out it's just harping on the fact that the emergency supplies were dangerously low during Maria - duh I'm a SJW and I have zero common sense, time to hate on America...