Why not just be honest here? It's not that WotC doesn't know what they want... it's just that you don't like what they are currently doing. Stop treating WotC like they're idiots who can't design games and just admit that truth be told, you just want to see completely finished product and don't really like to see the process of how games get made.
This.After a year in playtest I'd be expecting things to solidify a lot more and for them to be pretty much working on details at this point (with maybe one or two exceptions).
Why is it you seem to get more out of 5 levels in the previous packet then you do in 10 in this packet?
In a thread asking about whether people are happy or unhappy with the playtesting progress it seems rather silly to insult people who have a different opinion of the process than you do.
I agree with the criticism that far too much is changing every iteration and that there is no obvious direction to what is happening. Changes seem all over the place. And some extremely important changes (eg, monster math) are NOT being made.
After a year in playtest I'd be expecting things to solidify a lot more and for them to be pretty much working on details at this point (with maybe one or two exceptions).
I'd expect the base game to be quite obvious. I'd expect the design goals to be obvious.
While I haven't done much playtesting for WOTC I HAVE been involved in playtesting RPG products for something like 2 decades now. I know that the very first drafts written by designers that have seen absolutely NO playtesting (not even with the designers own group) are generally reasonably close to the final product and almost always clearly exhibit the features that make that game special.
And as far as "extremely important changes" that have not been made yet... why are they important? Do you have some inside knowledge of WotC to know what it is they're really concerned about testing right now?
Or is the truth more that you're more concerned with playing a "fun game" with your friends right now, than you are actually testing the rules as they stand?
The changes to the cleric and wizard are aweful, after first level you basically get next to nothing more from your class then an extra slot.
At level 2 you get 1 spell slot and that's it. Level three an extra spell slot. Level 4 1 extra spell slot. Ect... All the way to level 10. Boring.
Do you realize what you get by level 10 in pathfinder or even 4e?

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.