Having ubiquitous magic is a good way to justify having a third of the Player's Handbook made up with spell lists.
With regards to 'spell-less Rangers' and the like from 4E, did they have Powers or not? Aside from the nomenclature, most of the spells tend to do the same thing as the powers did. Maybe the issue is just in calling them 'spells'.
4e PHB Ranger powers are stuff like "shoot 3 arrows at once" or "strike with both blades for
lots of damage" - some have control effects but it's mostly just MOAR DAMAGE.