Multiple characters is a play style thing. My players generally dislike multiple characters, and they aren't fans of having a group of NPC henchmen/hirelings, either. In some games, it's great, especially when there is less roleplay, a pickup group or tournament, and so forth.
As for 5e raise dead rules, I would like them to be in the DMG, not the PHB. That way, it will specifically be a DM/campaign-level call. Even spells that raise the dead could be in the DMG.
Also, any rule which purports to make raising the dead rare/expensive has to actually be rare and expensive. In 3e and 4e, bringing someone back costs a lot of gold . . . except that PCs of a level able to cast the spell themselves can easily cover the cost.
Again, I hope the new edition moves some rules that have been in the PHB for 3rd and 4th edition back to the DMG. Examples: raising the dead, wealth expectations, magic items, item creation.