> Every sufficiently complex framework-free application contains an ad hoc, informally-specified, bug-ridden, slow implementation of half of a framework.
This is simply false.
On the other hand, every sufficiently complex framework-dependant application is way too complex for what it does, and would be a lot simpler if it was not using said framework.
> My last and--to me the most significant--observation is this: You want to pay the majority of your attention to the code that has the greatest impact on your desired outcomes.
One of your greatest desires should be to have strong propietry technology that you control. Otherwise you are not different from anyone, and anyone can duplicate your work in two months by just using the same framework.