Did any media said that Wagner Group people were freedom fighters?
Yeah, they do things like this all the time, specially on social media. Their operatives on these platforms are trained to swing public opinion about anything or anybody that serves their purpose. So if Wagner suddenly decided to fight Russia that would be in their benefit hence they suddenly become "freedom fighters".
By the way, it's still a mystery, what actually happened and why.
This whole event was definitely the weirdest thing this year. One theory I heard which sounded interesting was that Putin wanted to remove a potential future threat to Russia this is also why he has been removing all extremists from the military and his cabinet in general. The last piece of the puzzle was the Wagner group which they said they must only operate under the Russian military's command from now on.
The effectiveness of air defense depends not only on the type of weapons used, but also on the skillful actions of the people who use these weapons.
That is generally true but not about the Patriot system. The US military said these exact words after the Saudi invaders were attacked in retaliation, they claimed that the Saudi operators were newbies and messed up. The next day the US bases were attacked and the Patriot system still remained useless.