Bunker - I am a little disappointed

So the folks have released the bunker and it is a nice addition to the game allowing players to protect the hard mines resources but come on guys 15% protection at level 20 that seems just a little mean, I assumed it would have been 40% and a minimum of 30% but at least some of our resources are protected.

The other thing I would like to see is time remaining until resources are available for an upgrade, this would stop me having to flick between pages and trying to quick mental calculations, I am still enjoying the game even though it is a grind but anything worth having is worth working for.