When was the last time you checked on the availability of AES Op direct entry positions? I am not staff at a CFRC, but I know there *were* some spots still open, and I know of one person who went to WRT @ CFLRS and released.
If you did accept ED Tech already, good on ya and hopefully you like that trade too. You can always apply for a Occupation Transfer in 4 years if you are QL4 qualified and your trade is open for remusters out. No guaruntee you will get it, but just something to keep in mind for the future.