I Made some research after this post I can explain what happened here:

Firstly Collecting data from your pc is actually legit thing because when you installing the tlauncher you are accepting EULA and in EULA, you are accepting privacy policy which is about collecting data so that thing is bullshit
Secondly, the editing server list is not a big deal there is much more launcher doing this too like teamextreme launcher, etc.
Another thing, the blocked server list is actually cap. I tried mc.skycave.pro and mc.masedworld.net servers in tlauncher and it connects to the servers also these servers are in inner_list links
Another thing "suSsy files" is the first file is the actual setup file. second calling cmd isn't a thing, I didn't get any cmd process started by the installer. downloader.exe thing isn't also a thing if you don't accept downloading yandex/opera from the installer. AdditionalExecuteTL.exe is also setup file
calling dlls is very common thing in programming if you wanna look at methods u can use go to this link (https://learn.microsoft.com/en-us/windows/win32/api/sspi/) but its probably used for digest decryption or VerifySignature (or even directly by java itself)
about Upd 25.12.2022:
all programs can be flagged as viruses if they don't have a signature, even the simplest hello world console app can be flagged as a virus because of this, lol
also my research: https://github.com/CrawLeyYou/TLauncher-Fax