One thing I notice when comparing "Farpoint" to later Q stories is a tendency I've seen elsewhere in SF: a tendency to magnify the powers of superbeings in subsequent appearances. In "Farpoint," the Q apparently needed some form of propulsion to get around, with their forcefield turning into a sphere that pursued the Enterprise across space. The episode also gave the impression that the reason the Q had noticed us now instead of earlier was that we'd only just intruded into their territory. All in all, the impression was that they were powerful but still finite. But they were elevated by subsequent writers into omnipotent, universe-spanning, essentially godlike beings, so that in retrospect the use of the "pursuit sphere" seems like Q was just toying with Picard.
Another place I've seen this was on Stargate. When the Ascended being Oma Desala was introduced, she was shown as an energy being that could control the weather at will, very powerful to be sure, but she still needed to use the Stargate for interstellar travel. So Ascended beings were also initially portrayed as finite. But later, they were capable of instantaneous travel anywhere in the cosmos, just as godlike in their powers as the Q became.
And then there's Trelane. In "The Squire of Gothos," he had very limited powers; he needed a machine to amplify them, and aside from moving the planet around, he did nothing that couldn't be done with holodecks, replicators, and a really powerful sensor array (but one oddly limited to the speed of light). And yet fans have perennially interpreted him as being just as omnipotent as the Q, even to the point of assuming he was one. I've even seen "Arena"'s Metrons interpreted as all-powerful energy beings, although there was no indication in the episode that they were incorporeal. There just seems to be a tendency, among fans and TV writers alike, to assume that all beings more powerful than us are arbitrarily powerful, with no hierarchy being recognized.
Personally I think godlike beings aren't all that interesting an idea. I'd rather see superhuman species portrayed with more plausibility and restraint, rather than defaulting to godlike, magical powers. Characters with limits are generally more interesting.