While for some class skills it is a step in the right direction making them have morphs for stamina or magica use, it is still a hinderance locking a morph with a useful secondary effect into a set resource.

Why not give us an option to make any morphed class skill scale from stamina or magica?

For instance, as a Bow Nightblade I prefer concealed weapon morph for 25% sneak speed paired with my vampire sneak passive for increased mobility to get around the battlefield - yet my concealed weapon scales from magica. It doesnt matter if the other morph surprise attack grants armor reduction (without sneak speed), and therefore ZOS intended it to scale from stamina, as my reapers mark morph provides just the same, which any Bow Nightblade will use.

It just provides less options, regardless if you're magica or stamina - as in reality we have less options now.