Hi 
Yes sometimes a thing is missed here and there….. but the policy as I understand it is that you can model and create any object you would like but CANNOT use the actual logos or trademarks of that item.
For instance a Mac laptop can be modeled and mirror the specs exactly… but if you place the Apple logo or branding on it you will receive a soft rejection asking to remove the logo.
I do not make the rules
and can at least understand a bit why this is in place to protect the author as well as Envato.
As far as items being approved and then soft rejected like mentioned above… well I am only human
There are checks and balances to catch these items that get through sometimes.
I hope this helps… I know the upload instructions are due for some updates and Matt has put in the update queue to clear a few things up!! Matt may want to add to this?
vibes35 is an Envato staff member