Vehicle spare seats... who are they for?

Straight up, loving the game so far, you can tell they have worked very hard on it and remembering this is just a beta at present, it feels very polished, barely any bugs/glitches/performance drops. Gameplay is very smooth, every match and firefight feels exciting and full of action. Very impressed so far!

My question to the devs is regarding the vehicles, in particular why the tanks have spare seats for which the occupants are essentially bus passengers.

I haven't been able to equip a repair tool for example (would be super good to have this ability when hanging on the back of the vehicles perhaps!) Perhaps similarly to the sniper rangefinder I may be doing the wrong thing at first, but you don't seem to be able to do much as a passenger, which you could do on older bf titles.

Those seats seem to only provide a quick ride to the first flag at the start of the game, or provide players somewhere to respawn in on which seems a bit of a waste.

Are the devs planning to add more purpose to vehicles in future? Add the ability to repair the tank as a passenger perhaps? Even if riding the tank as a passenger (exclusive to the engineer role) provides a slow repair passive ability? I think it would definitely help the tank drivers a lot and provide more teamwork opportunities and overall purpose!

I managed to do that beta week 1 challenge to repair 3000 vehicle health mainly by lying prone on the back of the tank, at a lot of risk of getting shot off it from anywhere really

Thanks again devs anyway for making a fantastic game so far, looking forward to weekend 2 and the full release in Octover!