Well I personally think powers make up for lots of that in-general. But, also in a way because of the way the rules are written and how open it is, it is almost more expansive. Since I personally find it actually possible to create something in say 5-10 minutes that is balanced and workable with the system.
Don't agree with you at all about powers making up for the general variety of everything the 3.5 core had in it. It's kinda like saying that at a dinner having different types of steak (ribeye, top sirloin, etc.) makes up for having no vegetables, drinks or desert. If all you like is steak...I guess it makes up for it, but I definitely wouldn't say the steak dinner is more expansive or a complete dinner as one with veggies, drinks and dessert.
Maybe as far as pure combat goes it
might but as far as the breadth of supported (and I'm not talking about advice, but actual rules) playstyles 4e is lacking when compared to 3e. But we can agree to disagree on that.
As far as the " possible to create something in say 5-10 minutes that is balanced and workable with the system.". I can do this with a myriad of systems...nWoD, Reign, Blue Rose/True20, etc. and none of them costs over a 100 dollars and is as bare as 4e that I have to count "I can make stuff up" as a positive towards it costing me so much money.
I mean honestly with 100+ pages less than the 3.5 core can you honestly say they couldn't at least have put in detailed guidelines on designing traps? The rules must be ready since they're creating samples...yet for some reason we don't get them... Or more low level monsters, which many people are complaining about recently? No, instead we get to infer and reskin and this is looked at as a positive as far as content vs. price goes...uhm, ok.