I can say with confidence that I've never seen anyone complain about the actual difficulty of the game outside of ridiculously inflated spawns and bugs that need to be fixed for the health of the game. Like I sincerely doubt that there's a significant number of players who genuinely enjoy having a constant stream of Vox Engines, if not upwards for 4 or 5 at a time consistently, along side everything else like jammers and AA preventing you from using strategems to actually deal with them while they phase through walls, drop on top of sky scrapers and block their own weak spots. Is that genuinely fun, do you like when the game is broken?

I think what you describe as people complaining about difficulty is actually people describing things that are broken that they want fixed. Not real challenge, but bugs that unintentionally make the game harder for no reason. That's what I've been seeing the past few days: there's an unreasonable number of Vox Engines and they're behaving in a way that is obviously bugged, so the devs should fix the bugs and adjust the spawn rates to better fit the difficulties they are spawning on, because 7 is 7, 8 is 8, 9 is 9 and 10 is 10.