My question is very simple " Is burning of token really helps ptoject?

".
Yes, it makes the supply lesser to enforce the demand higher.
I am of the view that burning of the token doesn't help the project and I feel instead of burning unsold token it's better to use them for community and project development.
Apply the law of supply and demand so if you think that doesn't help the project, it's your opinion and everyone has their own points too.
Words of wisdom! I think you are right buddy! Imagine if the supply ends up being much than the demand, then the project have stands to lose. Cos no real value will eventually come on any coin that fails to master. Hence, I believe it's a great strategy to deploy as per projects struggling to reach hardcap.