I think that the whole marks thing is not that big of a deal. Those who knew they were necessary knew to save them up. And they did not make the Iron Banner gear as expensive as everything else which was good on their part. The biggest for me has been (as you stated) the drop rates. They are horrendous. Bungie stated before the Taken King dropped that they wanted the grind to be worth the reward. And for the Iron Banner it just wasn't I played to level 5 on my hunter and almost to level 3 on my warlock before getting any Iron Banner gear drops. And (also as you said) nothing that I have seen has dropped other than what is already for sale. Not to mention the fact that the ship drop rate is so ungodly low that I have only seen one person get it in the countless matches that I have played. Personally I always have a ton of fun in the Iron Banner. And my hawksaw has been particularly fun to use this go around. I think that they definitely fixed some of the issues but there are many more that need to be addressed. I think the biggest problem Bungie has is the old foot in mouth syndrome. They say something that they know will entice gamers and get them excited and they completely fail to deliver on it.