My takeaway message from this: Golden cards in BattleForge confirmed
On a more serious note, the ratios do seem to better fit the objective of the game, however, in the old BattleForge there were many promos that were not so called regular promos, that existed since the beginning but rather promos that have been added through certain events or expansions. Some of these promos are rather bleak and have been added for no other reason than promoting another game ( Lord Cyrian) comes to mind, therefore have not been very well designed or/and do not really serve a purpose in the game. Balance wise in the case of Lord Cyrian it is a very expensive cost per its stat and does not really fulfil any particular role both in PVE and PVP. Therefore, it could be argued that such a card would cause some players so feel that they did not really get a promo due to its very limited usage and useability.
It would be great to clarify whether the team might consider such special cases of promos not being very worth to open and possibly these promos would be reserved to be distributed another way.