The bomb blew up on a ferry that operates between Cancun and Cozumel. It is the only major transportation route between Cancun and Cozumel and it's the primary means of transportation for divers such as myself who find it inconvenient and prohibitively expensive to fly into Cozumel directly.
Note that your local news and media who supposedly reported that it was insurance fraud (and yet there is not one news article proving this to be the case), also reported not one but TWO explosive devices found ON Cozumel AND that a local gang was claiming responsibility. Source AND link provided below:
U.S. issues alert after tourist ferry explosion in Mexico
Two more explosive devices were found attached to another ferry on the island of Cozumel on Thursday, local media reported, saying marine troops had secured the scene.
Local media also reported that a drug gang had taken credit for the blast.
One source. Please. Otherwise you're speculating and regurgitating theories.
I stay out of bad areas. I won't travel into Harlem in NYC. No need to put myself in unnecessary danger.