METAL motor mounts

Is there still talk of aluminum motor mounts ? will it help make this stiffer or will the printed ones work just as well?

I reworked the entire roller system, the new rollers and mounts are legit, no need for metal in my opinion now.

Thank you fro the quick reply I saw references and nothing so I thought I would see if they were still being considered easier with the printed mounts so that is good for me.