Well, in my opinion, the Minovsky Particles are an often overlooked and extremely important part of what made the 0079 Gundam so good, because it justifies the use of Mobile Suits, the re-emergence of close quarters combat, and why people still used retro-futuristic communication devices when at that point they should be able to get a latency-free videostream from Earth to Zion.
By limiting communications, you diminish the scale of military operations and heighten the importance of visual contact on target, if nowadays we still have friendly fire incidents with all the IFF advancements we made, in that scenario, being on the vanguard made you an easy target for both sides. This is important because space battles weren't being decided on who had the biggest laser weapon and the biggest ships, but on small scale attacks on supply lines and posts by Mobile Suits, something that Zion had and gave them a good edge on the fighting against the EFSF. Therefore, as the face of warfare was changing, humanity also had to change.
Hand to hand combat, something that nowadays you have to count on your hands the times it worked or was even was considered or as a funny sidenote on Gurkhas or Royal Army soldiers being insane, was now being actually used. This would already be a complete departure to what we've accostumed to, but enter the Newtypes. People call it Space Autism, and I think I might be unconsciously quoting a discussion I've read on /m/ a long time ago, but it's the opposite. Newtypes are extremely attuned to other people, to the point of psychic precognition and telepathy. They should be the ones to usher in an age of peace with their understanding, but what do they have to do? They are being sent to die and kill on the frontlines. Be they old or literal kids, they are exploited and have to pay the price for other people's call for warfare. (Parallels to All Quiet On The Western Front here).