The changes to the sacraments I didn't get into? Here are some of the issues with on-the-hand communion:

1 - It's seen as a bit irreverent to touch it with your own hands and to take it while standing, while kneeling down is seen as more reverential.

2 - Taking it in the hand creates a higher risk of dropping and then trampling the body of our Lord Jesus Christ. Important to note that in on-the-tongue there is often a tray placed under your chin just in case too, which further diminishes that risk.

3 - Giving it in the hand creates a risk of theft and desecration. Taking it on the tongue protects against that.

All things considered, it's easy to see why traditionalists would strongly prefer on-the-tongue. It's their tradition also. There doesn't seem a good need to use on the hand and it's not offering any benefits, we're not under such heavy persecution that we need to be surreptitious about it.

The changes to the sacraments I didn't get into? Here are some of the issues with on-the-hand communion:

1 - It's seen as a bit irreverent to touch it with your own hands and to take it while standing, while kneeling down is seen as more reverential.

2 - Taking it in the hand creates a higher risk of dropping and then trampling the body of our Lord Jesus Christ. Important to note that in on-the-tongue there is often a tray placed under your chin just in case too, which further diminishes that risk.

3 - Giving it in the hand creates a risk of theft and desecration. Taking it on the tongue protects against that.