And how does that make Computer Science change? Just because our cars today move so much faster, have commonly air condition, and so on, does not mean that the physics has changed in the last century.
The difference is like knowing SQL, relational algebra, and DBA skills. Of these relational algebra and DBA skills are valuable: relational algebra because it's the theoretical under pining of SQL, and DBA skills, because they are very hard to get (it's a chicken and egg problem, it's seldom that one gets a chance to enter the field, and it's not something that you can learn on your private laptop, only in practice with big iron). Learning SQL on the other hand is yet another language. Not even Turing complete.