It can be predicted how well a device would power a particular headphone from measurements, assuming that they are reliable and sufficiently detailed. On the other hand, subjective impressions (which are usually done sighted and without even matching levels) are unreliable and biased more often than not, and often contradict each other when coming from multiple people. For example, my subjective impressions with 250 Ω headphones tell that they are not quite as hard to drive as hyped up by many, and from the available data, I am quite sure that I would personally find the E17 to be sufficient for them in terms of maximum power output.
There are a number of technical reasons why a low impedance headphone would not work great from the 3.5mm output of some random cheap device. These are designed to perform adequately for typical consumer usage, but that does not mean that they do not have audible flaws.