I can see people don't want Shards, but I have yet to see a good reason against them.
Many new players don't have shards and it would be a disadvantage for them if others could use them. That's why they vote agains it. Since there are probably more players without shards, more folks vote against them.
I voted against shards because I don't like the Idea of a neutral card, that gives the ability to heal yourself. A pure death deck with healing? huh?
If the ability were
: Heal 5 HP, it were no problem for me.