In general, online classwork is not "the path of least resistance." At my school, many students consider a heavy online course-load to be more challenging than taking traditional classes on campus. However, overall, it is not "the path of least resistance" because it is becoming "the path that more and more people take."
The classes are recognized by universities for a reason. They aren't just limited to people who work, have kids or can't travel (as an earlier poster noted)... they are made available because when they are done right, they are just as challenging as a normal courses, sometimes even more so. If the classes are recognized by the university and you pay for the education, who is to say that someone "is taking the easy road" when they are doing the same as so many others, just because they do not fit the stereotypical demographic of who you believe "should" be taking online classes?
I pay tuition like everyone else at my school, so I can sign up for an online class if I desire to do so. More and more classes are available online, so it is irresponsible to say that online classes are meant for only certain people, or to say that online classes are automatically easier.
Of course I know that cases will depend on the individuals... but are there not "easier" classes/professors in the standard classroom as well? Even if Manziel is taking the "easy" online class with a light workload, it's no different than the 97% of undergrads that search for the "easy" professors in the traditional classroom through RateMyProfessor or word of mouth. These "traditional" classrooms require a physical presence, but do not mistake this for a "mental presence" that is any different from what an online course requires. Just because you have to show up doesn't mean you are learning anything. With the proper professors, it can be just as easy to bypass the difficult coursework in a traditional classroom as many of you are assuming can be done with an online class.
Finally, I'm not making excuses if Manziel is taking an easy course-load intentionally... of course he's got it easier than the standard undergrad. However, I take issue with those that want to isolate online courses as for "certain people" only. That should be no argument against Manziel. And I definitely take issue with those who say that online classes are the "easy road" because it is simply irresponsible to generalize all online coursework in this way.