One of the most important and characteristic things about Rustlung in Gears 3 was just how atmospheric or in other words unique it was in terms of how it looked/felt, it was sort of a dark map with this weird and unusual feeling that it exuded with the setting (you were in a submarine I think in the middle of a storm) but in Gears 4 it completely removed the most important element of the map, it would be like remaking Trenches (another Gears 3 map) but then deciding to remove the sandstorm element of the map, its just an extreme departure from how people remember it.
Don’t mistake what I’m saying about its aesthetics/visuals to imply that the map was an amazing Horde/Versus map, the map was cringy due to Silverback in 3 and its layout for Versus, and for Horde it was fun but it wasn’t close to the most popular maps IIRC.
When I say that TC doesn’t really understand how to make maps their remakes are great examples, they don’t understand why those maps were popular, they fail to understand how to improve/“evolve” said maps into being better (BloodDrive is the most obvious example I think) and ultimately the remakes they do just end up failing more or less because TC just looks at a map and says “its popular” and that’s literally the only metric they understand.
I could go on about other remakes if you’d like 
Let this sink in for a moment; these are the dudes that thought DRYDOCK deserved a remake… I’ve made my case your honor 