1. Does the evidence hold up for closer scrutiny?
2. If not, why?
What I'm trying to do here is showing that two cases of critical importance for the veracity of the official explanation to the JFK assassination, does not hold up.
When this is done (1) the next question is why this is the case (2).
Yes, you're doing exactly what every single JFK conspiracy theorist has done for decades. Well, to be accurate, every single conspiracy theory in every genre of them. But this silliness has persisted for decades in the JFK case. I'll tell you why it gets no traction among real historians.
You're trying to convert the argument into one where you advocate something but bear no burden of proof for it. Specifically you're trying to erode belief so that some abstract, undefined conspiracy theory suddenly looks rosier by comparison. There's a well-practiced method for doing that, and your use of it is abundantly transparent. Here it is:
First, focus on marginalia. Forget the consilience of proof that everyone else uses. Forget the principal evidence and find some niggling detail to obsess over. Elevate it to the status of "critical importance" by no better means that your say-so.
Second, imply there's a universal objective standard of proof that a theory must meet in order to be believed at all. In other words, drive a wedge as tightly as you can into the inductive gap and fill the opening with all that marginalia. Ignore any requests to justify your standard of proof -- keep implying that it's a natural standard. In other words, beg the question that your analysis really is universal and sound. Ignore any requests to present a better theory, because your goal is simply to measure the conventional narrative against your invented standard and show that, according to that measure, it's "too full of holes" to believe.
Third, shift the burden of proof. It's not your job to present a better explanation. It's your job to draft whomever will oblige you into defending the conventional narrative against your speculation and contrived standards. Anyone who disputes your identification of holes in the narrative must be immediately styled as a proxy to defend the narrative, regardless of whether he believes in it or not. Use lots of rhetoric designed to force people either to accept the conventional narrative in all its particulars (and occasionally with all its warts) or to concede that some conspiracy theory might be plausible. Allow no middle ground.
Fourth, having thus dispelled of the "official story," imply that there's something out there waiting. But don't actually say what it is, because your job is simply to show the folly of the conventional narrative. Answering the hard questions is left to other people.
You won't present your beliefs because they're vastly more full of holes than the conventional narrative. And having established that stories with holes cannot be believed, you're stuck. Your beliefs can't even stand up to your own standard of proof. Every single conspiracy theorist ever relies upon this double standard. Your claims here are no different.