I don’t think a k-cup is less work than an aeropress, but I do have an electric kettle.
To truly compare the levels of waste, one would need to take into account the extra energy wasted by heating up more water than needed, which is a systemic problem with electric kettles.
And in an unrelated comment: the guy upthread who needs ot make extra pots of coffee at varying strengths for guests - I usually add water to coffee that’s too strong for a particular drinker? Is this not an option sometimes? 
