To clarify the first point:

The representative from the company did say the prongs seemed to have been improperly removed, and that the hole left behind by that seemed to have been covered in black tape, likely to protect the dog from the uneven edges that would have left behind. He also said he found that strange as they sell a replacement part for that purpose, which hadn't been installed.

And that indicated, to me, that once the shocking incident gained traction, Hasan scrambled to quickly put the collar in front of the audience but without the prongs. He knows people have been able to see the collar for months and would potentially recognize if he changed it, so he thought he could cover up the modification and claim it never had the shock prongs.

But it bring up questions to me:

Why would he have to improperly remove the prongs if not to hurry to show it to his audience without them?

If he had plenty of time why wouldn't he have just gotten a new one instead of modifying the old one? And if time wasn't an issue (because he had to quickly try to avert suspicion) why didn't he get and install the replacement part meant to have it safe for Kaya, post prong-removal?

I would say everything I've laid out is internally consistent: Kaya was wearing a shock collar, whether he shocked her or not in the famous clip is not relevant to my claims, but he got a lot of heat and attention to Kaya's collar from it, and felt he had to prove it wasn't a shock collar, and of course he'd know he'd have to do it quickly otherwise it would look suspicious. So he quickly modified it and taped over the now rough edges, either to hide the modification or to protect Kaya, or both.

Add to that that he changed his story, starting by vehemently claiming it wasn't a shock collar, and then, once some people found the model of it, changing that to it being a shock collar that could no longer shock.

That's internally consistent to me. Now, the only actual thing we know is the model of the shock collar and that it was modified, that the collar was way too tight and that Hasan changed his story when the model of the collar was identified.

Everything else is speculation, which is why I don't lead with that, but everything to the contrary is equal speculation and I just find that it has way less purchase with the above facts in mind.

On another note: I don't know why you're so quick to go ad hominem? I'm not attacking you or your character, and I'm engaging with you earnestly, taking in your points and responding to them reasonably.

How is someone supposed to respect your points if you make yourself so hard to respect?