The blast itself is gargantuan, and you can spend as much time as you like trying to find a conventional explosion remotely like the size and intensity. If you look closely in the last half, you can see something that looks like scintillation (direct interaction of high-energy decay particles with the sensor), but the cell phone video is so shitty it's hard to tell.

Then aside from any examination of the blast, if you look at this post from today on LOP...

Did israel nuke lebanon?

... you'll find every "Guest" and his brother with all different reasons why it isn't. Even if you weren't used to looking at such explosions, that would be enough confirmation right there.

There's been no mention of it on r/conspiracy_commons or r/conspiracy. No government will make a statement on it either, since they've all been trying to deescalate the situation. Then there's the perpetrator and their enabler, so you won't get word from either of them.

No one showed people in a movie that this is how it would play out, so essentially they are incapable of reaching these conclusions.