There will always be 1000s of writers...
A simple google search will allow you to see the number of new writers backed by Salman Khan, that too even before starting Salman Khan Films.
And Salman isn't scripting for the first time. He started even before he entered into films.
The lockdown, he is among those who isn't sitting idle. He's mentoring, working on the scripts, the video songs however are just to polish his skills & give an opportunity to the young brigade like Saajan Singh & Haider to work, improve their skills in cinematography.