Bring back consistent falling speed for TNT minecarts

Since the 1.20.5 update, empty minecarts and TNT minecarts fall at different speeds. Empty minecarts fall faster, while TNT minecarts fall slower. Before this change, all minecarts fell at the same speed. This allowed players to build bombing systems by dropping multiple TNT minecarts together from height. Now they separate mid-air, making these builds impossible. This change broke many technical builds, adventure maps, and simple redstone contraptions. Bombing systems, timed explosions, and complex minecart launchers no longer work as they did. I understand that the physics change was made to fix some exploits, but it would be great if TNT minecarts could fall at the same speed as regular minecarts again. This would restore many creative builds without breaking the fixes. Alternatively, adding a new item like a "weighted minecart" or allowing TNT minecarts to have the same gravity as empty ones would solve the problem for builders while keeping the game stable. Thank you for considering!