Ничего себе! Надо этого Aarts'a полистать, однако.))
Стоит также обратить внимание, что настоящее вместо будущего в придаточных - это не только удел придаточных времени/условия/уступки, но и более широкое явление, охватывающее большинство других типов:
Swan, P. 573
2 present instead of future: I'll write when I have time
Present tenses are often used instead of will+infinitive to refer to the future in subordinate clauses. This happens not only after conjunctions of time like when, until, after, before, as soon as, but in most other subordinate clauses - for instance after if, whether and on condition that, after question words and relatives, and in indirect speech.
It will be interesting to see whether he recognises you.
I'll have a good time whether I win or lose.
I'll go where you go.
He says he'll give five pounds to anybody who finds his pen.
One day the government will really ask people what they want.
If she asks what I'm doing in her flat, I'll say I'm checking the gas.
I think you'll find the wind slows you down a bit.
This can happen even if the main verb is not future in form, provided it refers to the future.
Make sure you come back soon.
You can tell who you like next week, but not until then.
In comparisons with as and than, present and future verbs are both possible.
She'll be on the same train as we are/will tomorrow.
We'll get there sooner than you do/will.