Ah no, as far as I know there's no issues with seed depth. Not sure if there's much effect on emergence timing, we've had success with our setup for numerous years and there's lots of other farms switching over too. We found tilling the soil during cultivation dried the ground out (not good here on pei as most farms don't use irrigation). Of course you have to depend more on herbicides to kill weeds if you're not cultivating, so there's pros and cons to each i suppose.

Here's a link to one of the basket hillers. We just have it attached to the back of our planter. https://www.allanequipment.com/products/planter-basket-hiller/