"Sixteen versus in the thousands", Mr Trump said on Tuesday, comparing the storm's certified death toll to the 1,833 killed in 2005 by Hurricane Katrina.
No wonder San Juan mayor Yulin Cruz said Trump's comments prove a "lack of sensibility" on the part of the President.
Stephen Colbert didn't hold back when talking about Trump's visit to Puerto Rico on Tuesday.
Mr Trump arrived in the United States territory nearly two weeks after the storm and with electricity restored to only a tiny percentage of its 3.5million residents.
'There's a lot of love in this room, a lot of love, ' Trump said.
But you would certainly know someone who can, without a doubt, offend the sensibilities and sensitivities of (most) people across the world - Donald Trump.
Meanwhile, a poll released by The Associated Press-NORC Wednesday found that just 32 per cent approve of how Trump is handling disaster relief in the USA territory, while 49 per cent disapprove. "What is really nasty is that anyone would turn their back on the Puerto Rican people".
After Trump left the island, Puerto Rico Governor Ricardo Rossello updated the official death toll from 16 to 34.
"He really has a communication issue".
Before his visit on Tuesday, Trump famously feuded with Yulín Cruz on Twitter when she criticized the federal response to hurricane victims in the US territory in a press conference and on CNN. And in fact, this bad and abominable view of him throwing paper towels and throwing provisions at people, it does not embody the spirit of the American nation.
Trump, who has feuded with the mayor of Puerto Rico's capital over the pace of the relief effort, claimed before leaving that even his critics were acknowledging "what a great job we have done".
Following the Puerto Rico visit, Trump appeared on Fox News and promised to "wipe out" the island's debt.