"Will it hurt the American component of Dominican tourism?"
Nals,
Obviously you were not around during the '50's when practically all of south Florida spent most every weekend in Havana, just a short flight away. And with today's fast jets, this weekend market now reaches all the way to the Canadian border. And when Cuba closed to Americans, this desire for "things foreign, yet nearby" was transferred to the Bahamas and Mexico. Canada had already been in the mix so we won't consider them in this discussion. At this time, US tourism in the islands and south of the border took off. The DR wasn't even thought of by the traveling public except as a place to avoid as they had dictators, soldiers shooting people, a repressed society,...well you get the picture (and this conception endures, even today).
Havana on the other hand was an open town of great parties and even better music, a gracious host to thousands of tourists (despite the fact that their "President" was also a dictator) and then after the revolution, a people who have suffered unjustly in the world's eyes at the hands of a "liberator," (yet another dictator just wearing a military uniform). And a huge Cuban contingent in the US (that has done well and further shown the US people their qualities) has kept their country and it's once-faded charms evident and further fueled the American desire to experience Cuba first-hand. Believe me, Americans are generally quite sympathetic to our Cuban friends.
The US public has an immense pent up demand to visit Cuba, which many Americans hold dearer to their heart than the DR. I'm not worried about a loss of European or Canadian visitors as yes, they have been visiting Cuba all along, but they are NOT the future of DR tourism as is the growing US market and they DON'T spend near as much as the Americans do (as a hotel owner I have first hand knowledge of this,...in fact they're quite tight compared to free-wheelin' American tourists). The DR might be attempting to upscale their tourism offerings, but take a look at WHO is staying in the $150-$200 a nights rooms. Europeans or Canadians? No, it's Americans who spend a lot more on vacations than any other leisure market in the world.
I see you have posted a poll and allready the overwhelming response seems to be one of concern for the DR. Rightly so. This country WILL suffer as world attention is turned toward rebuilding a down-trodden nation with huge investments, increased tourism and generally good will. I'm hoping I'm at least partly wrong and the powers that be in the DR will see this coming and change it's ways and tourism flourish and grow,...but I don't think so. The mindset just isn't there.