Hextech Crafting Chest Drops.

Im not against the idea of hextech crafting. I actually quite like the theory behind it, if not the only 4 a month and only one a champ. Personally i think it should be one a month per champ, with no limit per month, to encourage people to buy champs and get well with them. But thats something else entirely. I want to talk about the chest itself. It was my understanding that chests would give essence, champ shards, and skin shards. I already earned my 4 chests for the month, opened one with a key made from fragments, bought 3 keys, and a 5 pack chest and key bundle. I got literally no essence from opening any of the chests, only 2 champ shards, and a majority of it was skin shards. I like the idea of skins being somewhat more common, but for only 2/9 to have champ shards, and literally 0/9 having extra essence in them feels kinda bad. I was hoping to be able to buy 6th level mastery on my favorite champ, but at this point id have to either buy more chests, or wait till next months 4 chests and hope i get another champ shard. Has anyone else been seeing similar rates, or had the opposite problem?