And to think, just a couple of years ago the Interwebs were alive to people complaining about a slow release schedule. Now, it seems the eternal whiners have decided having now got what they asked, it's not what they wanted at all, and it should be slower...
How about a reasonable pace "in between"? Impossible? It must be either crawling or sprinting? 2nd Edition was the only Edition which managed to get every codex + (free) datasheets within one edition.
Every other edition was a chaos of outdated codices and incompatible rules. And while they started to sprint for 6th to 7th and try to rush out the remaining codices, 6th edition codex are not quite as compatible with 7th as the players would like to have (starting with PSI equipment). No problem as GW offers a regularly updated Errata and FAQ to... oh wait... they dont.