I am very glad the Supreme Court has ruled on this point of constitutional law as they did. I don't think it will change Brexit but it will ensure that Parliamentary Sovereignty is upheld as a concept. This ruling is not just important for Brexit but as a reminder that Governments cannot just rely on perogative powers to change the law in the UK without consulting Parliament.
OP - you really need to make an effort to understand this. Papers like the Daily Mail are coming out with their usual bollocks interpretation but most vaguely normal commentators understand the importance of this case and its implications beyond Brexit.
Learn about representative democracy v direct democracy. The powers of a Government to act without Parliament and when they must consult them. The nature and status of referenda in the UK.
It really annoys me that people who have been complaining about the EU unilaterally imposing regulations on the UK bypassing Parliament (not saying this applies to the OP) then start complaining when the Courts have to block the Government from unilaterally imposing legal changes on the UK bypassing Parliament. If you start allowing a Government to ignore the constitution when they are doing what you want where do you think it will end? What happens when they start doing things you don't want? How will you stop them the checks and balances have broken down?