I agree. While I don't think that the presence of the speak with dead amulet is necessarily as extreme as you say, it still means you basically never have a reason to use the actual speak with dead spell when that becomes available. It kind of changes speaking with the dead from a cool thing if you have the right resources to something more mundane. The guidance necklace is similar but less intense since Guidance is already a cantrip that you can cast infinitely.
And I also agree that the abundance of resurection scrolls is over the top. I'd probably be indifferent to it if not for having withers around on top of that. The abundance of those scrolls makes Withers far less meaningful, since you're less likely to need or use him.
