Personally I would be unconcerned by a few tiny strobes taking the weight over 250g, and would attach them with velcro so they could be easily (and inadvertently I'm sure!) 'knocked off' while we are handing the drone to the police for any...
Looks totally fine to me. You already have 1080 transcoding in place, but as mentioned, 4K makes a huge difference, but also, of course, to file size, which increases x4 along with the resolution. And yes, set that 4K30 or 4K60 in the drone...
Betaflight Failsafe works, but no where near as well at DJI. This is as close to loosing a drone 3000' up a mountain as I have had yet. The drone continued forward after disconnecting and came within several feet of hitting the mountain.