Interesting perspective, but they clearly don't understand American politics.
Firstly, Bernie Sanders is far too liberal and socialist to get elected President today. A huge chunk of Americans think that "socialism" and "communism" are the same thing. Seriously. Also, for whatever reason, even American's that aren't that ignorant tend to view policies that would be considered moderate or very slightly left wing policies in Europe as extremely left wing. I'm referring to things like nationalized healthcare, job training programs, heavy-handed business regulation, and social welfare programs. Some day, the United States might be ready for someone like Sanders, but he is nothing other than a pipe dream today.
Secondly, it isn't very often that Americans are choosing between truly excellent or even very good choices for President. We're frequently left with trying to choose the lesser of two evils. Sometimes, how bad one choice is versus the other may not be obvious until later events put it in stark relief. I think it's dishonest to pretend that the United States is the only place this occurs. Many countries don't have the opportunity to elect a Justin Trudeau.
Also, the author fails to consider that what's best for Americans and the United States in general may not align with what's best for random other countries. The only time a voter should really think about external factors is when considering things like how a candidates' foreign policy will affect their own and their country's success or with regards to the global environment. And when you dig down, both of those things really do affect the voter themselves to some degree in any case so they really aren't truly external. I mean sure, you should think long and hard before voting for someone who is going to go around committing genocide around the world, but they are probably a megalomaniac anyway and have other warning signs regarding temperament or domestic policies that should give pause. *ahem*
With regards to Hillary Clinton, very few people were happy to vote for her except, perhaps, to say they were happy they didn't vote for Donald Trump or one of the loony tunes third party candidates. Count me in as one of that group. Regardless, Hillary Clinton was clearly the better choice for this country out of all the candidates on the ballot. It's too bad that many people didn't see it that way.
All of that said, I absolutely recognize that Muslims and Middle Easterners probably aren't big fans of the United States given its foreign policies since the 70's and would be rooting for the this country to adopt a foreign policy that doesn't involve them so much or to simply fail outright.