Yep, all of what you said PLUS the fact that you can just use arena allocations where you know you'll have to allocate hundreds / thousands of objects and then

Yep, all of what you said PLUS the fact that you can just use arena allocations where you know you'll have to allocate hundreds / thousands of objects and then free them almost at the same time. The blog article's author even alludes to this, which makes the post kind of funny. He debunked his own argument and yet continues on as if he did not.