That’s a question for the Mando-Talmudic scholars.
Grogu saved Mando when he was trapped in the Mines of Mandalore.
I want to see an amanamandalorian.
I thought it was comical as well. But thinking about it some more, I’m not actually sure what happens when flamethrowers cross streams. The real-life devices are just squirting flammable liquid that happens to be ignited. It’s not like liquids can pass through each other unimpeded, so it’s likely to be a splashy, fiery mess.
Seeing as their flamethrowers are wrist-mounted with no tank, my guess is that they’re shooting some sort of superheated air rather than flaming liquid.
It would be bad.
The Council of Space Nicaea declared that ears were not a part of your face in 1000BBY.
I am not sure how their flamethrowers work, but I know there are tubes running through the mandalorian armor and specifically coming out of the wrist bands. It COULD be using fuel from somewhere, the jet packs definitely use fuel.
Important safety tip.
But Djin had a flamethrower before he got his jetpack.
Maybe they have beskar fuel tanks that are strong enough that the fuel can be compressed to a million psi or whatever (and thus be teeny-tiny).
That’s arguably no more stupid than anything else about them.
Incidentally, can I take the opportunity to note how monumentally lame Grogu’s “Force jump” ability is? It looks absolutely nothing like someone jumping and exactly like someone tossing a doll.
Also, why didn’t the other kid just shoot him three times right away, since that’s apparently allowed? Or are we still going by the “Mandalorians aren’t very bright” metric?
Yeah, I’m thinking that these aren’t the most coruscant people in the galaxy.
What’s it supposed to look like when a doll child uses the Force to throw itself? 
Well, these are the religious fanatic remnants of a society that was largely killed off, who survived largely by hiding from everyone else. So, yeah, maybe they weren’t exactly the cream of the Mandalorian crop.
It’s like with the reboot of Battlestar Galactica - that crew screwed up an awful lot, because they were literally the dregs of the fleet. They’d been assigned to decommission an obsolete ship that hadn’t seen battle in decades. The only reason they became the Heroes of Humanity is that they were also literally the only military people left alive after the initial attacks.
It was only missing beer and cornhole.
That added nothing at all to the story, though; you could have written the episode and had him saved by Bo Katan anyway by sending a message, either thrtough some personal device or the still-very-operational astromech droid. It honestly felt as if that was shoehorned in to give the child something to do… and it detracted from the episode, as it caused the sequence on Mandalore to be dragged out significantly.
The quality in writing between this and Season 1 is just astounding.
I never got that sense at all. They performed with genuinely astonishing competence.
Zed AND Tim Meadows in my mandalorian? yes, please!
The problem with that ending was that it was just dropping him off at another Jedi student slaughter.