I read the first two pages of this thread and then this last page, so forgive me if I repeat anything here.
I think Raise Dead/Resurrection should be allowed, but it should be a rare occurrence. The problem with both now in 4E and 3.5E before it was that it's too easy to use, and it's also accessible by too low level a cleric.
To illustrate my point:
When WotC released 3E, they said that their surveys indicated that in 1e/2e, most campaigns ran from level 1 to somewhere around level 9 or 10 at the end. That means, that Raise Dead was something that a PC could cast only at the very end of a campaign when he or she was at level 9. Resurrection was something that was normally beyond the means of the PCs, since it was a level 7 spell, thus you'd need to be level 13 to cast it. So, you'd need to have access to a powerful NPC to get a Resurrection done. And, even Raise Dead was something that you'd only do at the very end of a long campaign.
However, when 3E came out, Raise Dead was still accessible to the PCs when they got to level 9. However, the campaigns were now designed to go from level 1 to level 20. So, you could now access Raise Dead less than halfway through a campaign. The spell lost its wonder because it was something a middle level cleric could now cast. (however, if you disallow Raise Dead & Resurrection, you're nerfing the cleric)
Then, with 4E, Raise Dead was cheapened even further. It was now a level 8 ritual, and campaigns were now designed to from level 1-30. So, you could now cast Raise Dead only 27% of the way through a campaign - heck, you're still in the bottom tier of adventurers and you're raising the dead.
During my 2 1/2 year long 3.5e campaign, my players used Revivify at least once a combat once they had access to it (Brings a player back from Death before the soul fully departs from the body if cast within 1 round of death... or more of augmented with the psionic version of it). However, the actual casting of Raise Dead or Resurrection was rare. In fact, I think I only recall one actual PC resurrection in the game - and that was in the last combat where the PC cleric cast a 5,000xp Miracle to bring the fallen dwarf fighter back from the dead after he got hit with Implosion, and shockingly, failed his FORT save.
The problem isn't Raise Dead & Resurrection in and of itself, the problem is accessibility. Raise Dead shouldn't be something a just out of the gate adventurer can cast. It should only be used by the most powerful practitioners of divine magic - thus, the PCs can use it only at the end of a campaign. Revivify is only mostly dead, so I think access to something similar is okay somewhat earlier - but, even that should be later on in a campaign as well.