DTD was released shortly after MC. Graphic was more close to F.E.A.R or cod WaW ( grey/brown aethethic, buildings style etc.) 7DTD artstyle is like person who was considering that go to IT ( realistic) or engineering ( comic/parody) but considering what want from live so long that finished as night guard on parking. Still better that crackhead ( Night of the Dead) yet i think it's not something to be proud of. About broken bones or blood moon - i will give you Uncharted as example - one of dev expalin that you character never get bulllet "canonical" during gameplay only during cutscene and "lose of health" is just " lose of luck" - damn Drake is the luckiest man alive if he can is not shot buy guy using shotgun point blank. Yet it's realisitic about logic - if there is ww2 base : you can find mp40 near german corpse. So yeah there is magic etc. yet... what should be realisitc is realitic - i don't think you would find M16 in XVI century ship wrecks.
And in 7D2D you would NOT find an MP40 near a german soldier corpse. Surprise !! If you get lucky a dev of 7D2D will explain to you why you see so many similar zombies and there is a blood moon, and I will guarantee you that that explanation will be as realistic as the explanation of magic exisitng in Unchartered.

What was the explanation for the existence of magic in Unchartered again? There was none? Thought so.
But returing to 7dtd - started in realistic style - pois design, props, weapon models, enemy models etc. just there is totaly change of style since dunno A19?
That argument gets you included into my internal list "found out about EA too late"

But 7D2d started with very few models of zombies and never changed that. So you should be pleased, at least they didn't change that.

See, you only refer to old alphas as setting rules when it suits you. But the thing is, old alphas do not set any rules. I am sure nobody inside TFP will care about anything that was in alpha4 and neither will they listen about you complaining about style changes that happened after some prototype version
About writing to Faatal: i don't think that ping him will cause that he answer to this post after all. Devs were piged pretty often previosly ( idk if something change during halve of year) so it's likely it will be ignored. You are Mod here so you are probably in more direct contact with devs. If you want to join him into disccusion you can DM him. I will gladly explain him my point of view.
What you can hope for is that they read your opinion.
The only mod with a direct contact to devs is Crator Creator now. Even worse, what you discuss with me or anyone else is even more likely to be ignored. Because they assume (AFAIK) that any replies are part of some conversation and argument between players. And they don't have time to read all that stuff. I am also pretty sure that Faatal is DM'd so often that he simply ignores DMs.