The way the legislation surrounding "Permanência definitiva" and the rights of foreign nationals coming here on Temporary Visas works is pretty complicated to say the least.
So let's look at some examples that maybe will help the average guy understand the technical crap!
John from the USA comes to Brazil on a VITUR Tourist Visa, meets, falls in love with and ultimately marries Bruna. He then applies for a VIPER Permanent Visa... the moment he applies for his VIPER based on marriage, that carries with it the automatic right to remain in Brazil, to obtain a Carteira de Trabalho e Previdência Social CTPS, and to work while the process takes place (no matter how long that may be).
Bruna goes to the USA where she meets John. They live together as a couple for a year, but without the benefit of marriage. They've got stacks of documentary proof of their stable relationship (União Estável) and both come to Brazil where John applys for his VIPER Permanent Visa, com base em União Estável. While it automatically carries the right for him to remain in the country while the visa is being processed... IT DOES NOT carry the automatic right to work as do applications based on marriage or on having a Brazilian child. So John would not be able to work for the two or three years it might take to process his permanency. He could ONLY obtain his CTPS after his visa had been granted.
The same thing happens with people coming here on VITEM-V Work Visas. If your spouse comes here on a VITEM-V Work Visa then you can apply for a job and your own VITEM-V Work Visa, CTPS and all that good stuff without much hassle. You'd still need to return home to collect the visa however.
Your partner (girlfriend/boyfriend) with whom you have a "stable union" comes here on a VITEM-V Work Visa, you're looking at a long uphill climb. You can't work, apply for your CTPS, study or anything else. You're just a tag-along in the eyes of the government. You can look for work even as a tourist, that's everybody's right. If you find a job that will qualify for the VITEM-V and the employer can satisfy the MTE that you're absolutely necessary and they can't find a Brazilian to fill the vacancy then you can apply for your own VITEM-V and you're off to the races! Still the necessity exists for you to return to your home country in order to personally collect the visa at the Consulado-Geral do Brasil there.
Is this logical? Clearly it is not! That's just the way that Brazilian bureaucracy works, unfortunately. Not much surrounding immigration to this country makes sense since the legislation dates back to 1980, it is outdated and virtually unchanged since it was enacted. It was brought into effect at the end of the Military Regime in Brazil and strongly reflects the overall political attitudes of the era. Even the current president of the Conselho Nacional de Imigração (CNIg) states publicly that complete revision of the law is long overdue. But, there is no political will to change things here.
Sure, any half wit can see that if you can apply for your VITEM-V here in Brazil you should also be able to collect it here as well. Surely the MTE should have the authority to put it into your passport and eliminate the need to have a Consulado do that back home. Sadly, until the laws are changed that is exactly what we have to do.