Which is kind of BS, they could just take the torch/fire effect we already see on maps, and replace the 2D weapon vfx of either the meltagun or the grav gun, add the fire ailment and boom, flamer, heavy flamer, skorcha, kombi scorcha etc.
Because I don't have money, a development team, and I'm currently going through college. Get back to me in two years.
Who needs burnas when you can have KILLSAWS and SHOKK ATTACK GUNZ?! For the uniniated, killsaws are like powerklaws but super effective against vehicles, and shokk attack gunz create a warp tunnel to the target that can have wildly awesome effects. Mekz. You need mekz.
I love burnas aesthetically, but I bet my big shoota will always be more useful in any given situation.
If SM/CSM can have flamethrowers (Meltaguns) I fail to see why Orks cannot other than it'd require effort. In tabletop Burna Boyz are an elite unit so I can see why they are not available for the Shoota/Shoota Boyz at least, but if we are to have elite classes as some point then Burna Boyz should definitely be one of the options. Failing that you could just throw the Burna onto the Slugga or Loota as an alternate way of playing those classes.