It is a pity that they disabled some of them. They might as well not exist now, since only a hard fork can bring them back 
.
.Don't confuse those that are permanently disabled (multiplication, division, bitwise operations, string operations) with those that are not relayed (flow operations, stack operations, addition, subtraction, crypto functions).
Scripting doesn't really achieve very much, as I posted here enabling all the scripting operations only really allows more complex multi-signature transactions and proof of work in order to spend transactions.