PT-System-based computers are unable to download non-PT apps like, for instance, Flash Player US Version.
Site stucks on PT-BR Region option. (http://get.adobe.com/br/flashplayer/)
But there are exceptions:
I can can change Region to:
However, any english-based address redirects me to PT-BR Adobe site.
It is impossible to reach UK, US, BE(english), Greece(english), Israel(english) Adobe download sites (the examples are not exaustive but they can demonstrate that there is a selective option not to get any english-based Apps, other than PT-BR from portuguese-spoking people.
I must note that PT-BR translations uses very often technical terms that PT-PT users are not familiar with, in a regular basis. Many PT-PT users opt to use, instead, English-based software because of that. There is a not-assumed 'war' regarding linguistic issues, because Orthographic Agreement between PT and BR is very controversial among people. This is very understandeable, since we assume there are notorious cultural differences in vocabulary (some objects, actions, concepts, are written differently in Portugal and Brazil, and even grammar uses differ in some situations).
I may assume that Adobe is not fully aware of this particular issue. However, this is not a fair treatment for portuguese-spoken people, as this blocks any option to choose english-based software.
I hope this issue may be attended accordingly by Adobe.
Moving this discussion to the Installing Flash Player forum.
I don't know if Adobe is going to do something about that; most likely not.
Note that the downloaded installer is the same regardless from what language page you donwload it. Once the installer runs, it will display the operating system specific GUI. But at the end the installed software (Flash Player) is the same whether it was installed from the English, German, Portuguese, or Japanese page. You can also download the installer that does not come with any website instructions:
This is different when downloading the installer for Adobe Reader, where the installed product is language specific; you select the language on the download page: