Hello Claymen,
Thank you for the bug report and feedback, we will fix that asap!

In a news we shared a few months ago about the game design, we told this about legendaries and uniques, so you can know a bit more about our objectives with these items:

Legendary items are meant to be very powerful rares. They offer a higher amount of affixes and can be extremely valuable when you find one with the good affixes, the good tier, and the good numbers.
If you meet all these conditions, you can have the best item for your build.
Unique items are meant to help players during the leveling and to provide unique affixes that can’t be found on other items of the same type, or unique effects that can open new ways to play various builds.
We prefer aiming for many unique effects and affixes in the long term so these items bring extra value to some builds or even allow for very specific builds.

The item level is not supposed to show on items anymore, currently you have this value shown but it doesn't reflect anything more than the creature's level that looted it. We will either make this value useful, or remove it.

Consuming embers buff for allies should be fixed with the next hotfix planned for next week :)