Em what half of what you wrote you dont even follow the rules for evaluation that you yourself have decided to use.
You say RAW there is no such thing as a ranged thunderhammer, where does it say there is no such thing as a ranged thunderhammer? Infact, if you read the spacewolf codex it infact says "foehammer is a thunderhammer that can be used as a ranged weapon with the following profile" which makes it pretty clear there is such thing as a ranged thunderhammer. I cant even be bothered to go into all these nonexistant conflicts, but most of your assumptions seem to be that there is no such thing in the rules, but you seem to forget that codices ADD to the rules they dont just tell you which rules you get to use.
And before you say oh but its a thunderhammer and a seperate ranged weapon read it again, the thunderhammer is still being used as a ranged weapon, the addition of a profile gives it the additional rules required over a normal thunderhammer to function as a ranged weapon. This does not exclude it from being a thunderhammer and therefore the rules for thunderhammers still apply to it, read what it says- "In addition, all models that suffer an unsaved wound from a thunder hammer and are not killed will be knocked reeling, reducing their initiative to a value of 1 until the end of the next player's turn."
Said this lots now and I am losing interest in saying it again so Im gonna finish my contribution to this thread by saying that any arguements of RAW cannot argue against foehammer having the thunderhammers abilities, that is EXACTLY how it is written.The arguement here really is if this is what gw intended since they also included another majorly powerful ability in the same codex that gains an awful lot from this and so comes down to RAI, and I whole heartedly agree that it probaly wasnt intended as it seems a tad hax to be sniping carifex and the like with your foehammer-jotww combos.
But you have to read the writting as its written, I thought this was rediculous until I read both sections myself, that is the way its written so you cant argue against it.