In a word, no.
Generally speaking, there is simply no need to download them.
If you've tapped Settings > Data Downloads, downloaded the region(s) you fly in (so that the desired area is now shaded dark green), you will have all of the basic map and chart requirements that you need.
The Mega VFR map includes all WAC, VNC and VTC maps for the region, all in the one convenient seamless map
The (Mega) EnRoute Lo map includes all ERC Lo and TAC maps for the region, again, all in the one convenient seamless map.
This covers your map carrying requirement.
If you have plenty of storage space on your device and you choose to download the individual maps as well, that is fine. If you are short of storage space on your device, then you can consider not downloading the individual charts.