What Christ’s disciples should do is what they did in the second century when they realized that the pa-rou-si'a was still not realized. THEY GOT ON WITH THE REST OF THEIR LIVES. Sure, they hoped and waited and were ready in case Judgment Day suddenly beckoned unannounced. But that did not prevent them from living normal lives. It is one thing to be ready in case it happens, it is an entirely different thing to falsely claim with certainty that it is at hand.
Oh Lordy, Leolaia is this really the advice you would give someone on how they should respond to the material in Matt 24? Would it not be better advice to acknowledge that, since the author of Matthew made a mistake in stating the end would come in the first century, he was not an inspired writer after all and we would be better off not in any sense revolving our lives around what he wrote? Get on with our lives and - give up the idea of "readiness" for a never-coming-Jesus altogether!
I can't help but see your advice as problematic whatever way I approach it. It appears (from indications in what you have elsewhere written) you are not yourself a "believer" in any sense in the objective truth Christian of the story. So is it not just a little presumptuous to be summing up "what Christ's disciples should do"? Much of your analysis was excellent on a textual level and I thoroughly enjoyed it, but I can do without the moralising about how believers should believe from someone who does not herself in fact "believe".
And who is to say adopting a so-called second century "lack of urgency" approach would be the best thing for current believers anyway? It rather implies that the believer should simply accept that an inspired writer got it wrong, or that Jesus himself in fact got it wrong, and build a new understanding of Christian truth around that inconvenient fact. I know liberal believers are capable of all sorts of contortions and concessions in this and many other regards. But whether such reasonings are truly more "healthy" than a JW view of the word/world is a moot point in my view. It could be argued that the untra-imminent-expectation approach of JW's is at least more congruent with their stated belief in the Bible's inspiration, and to the extent they can psychologically maintain those beliefs, perhaps also mentally more "satisfying" than the liberal approach you advocate.