[MetaCosm]

Words like "worse" and "should" are very loaded in this context. Was the blitzkrieg "worse" than the trench warfare of WW1? Was using nuclear weapons "worse" than firebombing (see: Firebombing of Toyko, Dresdon).

"Should" used to mean "probability or expectation", then yes, it "should" continue to to get "worse" (read: change).

War is a horrible endeavor at its very core. It will always be, we try to "civilize" it via rules that are always broken as soon as things become dire. It isn't the implements or efficiency that are the problem, but the waging of combat itself.