For the purpose of logistics a commercial drone is absolutely fine, they are doing the exact same job. What's your objections to the Matrice 600?
On the contrary, for the purposes of tactical resupply, things like payload, ruggedness, resistance to jamming (you don't want to lose your drone and your cargo especially if you're resupplying a tactical group that needs it), are more important and a bit more than what your standard Matrice 600 should be used for in real life. Heck, DJI even offers other drones that would be a bit more appropriate for this mission such as the Agras family which are not only more rugged and water and dirt resistant but also have significantly greater payload.
Now, again, there's nothing wrong with using a Matrice 600 or other similar consumer drone for primitive and early experimentation/demonstration purposes. But let's be open and acknowledge it for what it is as if pretending this is suitable or intended for widespread fielding.
I don't know why people are laughing at the individual meals being delivered, that's exactly how I imagine resupplying outposts like Galwan to be like going forwards. Commercial drone delivery has been trialed in several countries but has not taken off. The only place it has proven to be commercially viable is in resupplying remote locations like African villages that were previously supplied by bush pilots. That is basically the border with India.
It could mean MREs become a thing of the past or for emergencies only. Soldiers on posts can order whatever they want and in half an hour it arrives.
It's fairly simple, the optics and rationale of it is not very impressive.
It's obviously a photo op for an early experimentation/demonstration of concept.
It's not that impressive and frankly looks a bit lame. So saying "yeah it looks odd" and then moving on is a perfectly reasonable response.