I'm not even so sure that they are unnecessarily complicated to scale, or that you should need or have to replace the features you list. I am sure, however, that everything you list ends up needing to happen if the solution chosen doesn't apply well to the problem at hand.
When you really dig deep down into each and every article on this subject, whether for or against NOSQL, the most important (and yet unstated) fact is this:
It isn't that RDBMS systems scale or don't scale, or that NOSQL systems scale or don't scale, it's that any solution which prioritizes (just for example) consistency and availability is not going to scale effectively for a problem that instead prioritizes availability and partition tolerance.
I am willing to bet that any time a problem and a given solution don't align on the two attributes they've respectively prioritized from CAP, there will be a claim that the solution "doesn't scale". The reality is just that the solution wasn't applicable to the problem at hand. If instead one evaluates solutions which match the problem's CAP priorities, the solutions will scale effectively (modulo their individual pros and cons relative to the other options within the evaluated CAP-priority-matching set of possible solutions, of course.)
When you really dig deep down into each and every article on this subject, whether for or against NOSQL, the most important (and yet unstated) fact is this:
It isn't that RDBMS systems scale or don't scale, or that NOSQL systems scale or don't scale, it's that any solution which prioritizes (just for example) consistency and availability is not going to scale effectively for a problem that instead prioritizes availability and partition tolerance.
I am willing to bet that any time a problem and a given solution don't align on the two attributes they've respectively prioritized from CAP, there will be a claim that the solution "doesn't scale". The reality is just that the solution wasn't applicable to the problem at hand. If instead one evaluates solutions which match the problem's CAP priorities, the solutions will scale effectively (modulo their individual pros and cons relative to the other options within the evaluated CAP-priority-matching set of possible solutions, of course.)