ATM you can use paras to quickly destroy strat ressources, roads and rails and force the enemy to divide units from the main battle line to deal with them. Establishing a 2nd front in the back of the enemy is also rly funny. I think giving them the ability to attack after drop would improve them even more.
Another topic: "I´m the only one that things Fighters should get a slight buff?"
They are only good vs other Fighters or Bombers. So you can´t use them efficiently if you have a tech lead or no one teched to Bombers jet, as they suck vs ground and sea units. (They make the same dmg vs their era ground units as longbowmen, yea it is 1. Longbowmen will have +1 range by that time and maybe logistics making them able to make 2 dmg without being dmg.)
Even worse another unit does the same job resource free and at a lower hammer cost, the anti aircraft gun.
So I think it would be a good idea to make Fighters better vs Artillery so that there is a reason to build them beside to counter the bomber, that comes later.