In my personal opinion, so do not take this as fact or things against anyone, the newly released Crafting Helper system will change the game in a negative way. For me, the experience in crafting has been positive and unique because of the requirement to know recipes (or look them up from external sources). That was one of the only decent things separating the crafting system of Minecraft separating it from literally any other game. In literally every other game, crafting is simply opening a simple menu and clicking a button while hoping you have the right resources. In Minecraft, you had (hopefully "have") to figure out how to make something, not just be the all-knowing god of crafting right off the bat. In my opinion, this appeal of needing knowledge to play made the game funner and unique, rather than a much more generic game. In a conclusion directed at Mojang, it is the duty of the game to stay unique and not allow it to become just another generic survival-exploration game. Please Mojang, keep our beautiful game beautifully unique.
The ability to play the game without looking at Wikipedia is a welcome change in my opinion. Maybe it can be tweaked but I think it's fine being in the game? After all it's a separate GUI and you can choose not to use it, but for new players it's a godsend.
Personally, I consider the old Minecraft crafting system to be one of its greatest flaws. How many other games out there require that you go out to the Internet to find basic information about how to play the game? I can understand what Notch originally intended, with intuitive recipes that closely resemble simple items like ladders, doors, arrows, etc, but as things became more complex, some recipes could never be learned in-game. If you never looked it up on the Internet, could you ever learn how to make an enchanting table, or a redstone repeater by playing the game long enough?
The Meaning of Life, the Universe, and Everything.
They didnt remove the crafting GUI did they? You ca still use that, nothing has changed for you
As for new players getting into the game... I remember not knowing any recipe and constantly having to follow walkthroughs to understand the basics of the game. That was NOT a fun experience and that's a lot less necessary now, finally.
I think that the game can become much more immersive if you can play survival in full screen, without ever having to alt-tab to search on the wiki. You still have then to explore the world and on your first day find out how to even start.
Because the recipe book only tells about recipes you can make with materials you already have. It does not tell wich materials you can find and where they are, it does not say anything about survival, mining and exploring strategy's, it does not tell you how to build farms and Nether portals, how enchanting and trading with villagers works, how to build beautiful castles, how to use redstone, etc. It gives you only recipes for the crafting grid and crafting table, that's it.
So even with the recipe book there is so much more to explore and to find out for yourself, that it is only convenient that the recipes are findable ingame.