>>23544843>but that's actually a pretty recent development where they are the only faction to receive multiple dexs.
Which is the crux of the problem. Everything else has been stripped down to it's bare essentials. The daemons split, but they were just a pre-existing 'piggy-back' faction that was completely removed from one book and given it's own. It'd be like if the Kroot suddenly dissapeared from the Tau codex, and were given an entirely separate codex instead. Or rather, if the Inquisition was removed from Grey Knights and given it's own book.
Despite all that the Eldar had 1 tiny splat-book that crammed short summaries of 5 craftworlds and outlined briefly the rules for running them (5 armies, 1 book). The chaos legions were similar and consisted of 9 armies, in 1 large codex (broken as it was). And Guard were 1 minor splat book that nobody every bought, a codex that let you customize your regiment to represent any given regiment. And the Ork clans were a WD article that was a tossed bone to an underpopulated fanbase, so they could get in on the variant faction fun as well.
And all of that is gone. Regardless of whether or not it's a recent development, marines are painfully boring and dull, and similar. And every attempt by GW to add *yet another* ridiculous element to further diversify them, just reinforces that samey, dull, boring feel.