That is what is required as any other way will last a long time and may not work and the reason the 1960 constitution failed was due to enosis and the gc desire to have tc as second class citizens or was that 3rd class.
Sure, the EOKA B (a small minority of GCs) was
one of the reasons.
However you should not forget things like the 30% of governmental positions that the TCs were supposed to have. (something that is unfair, you have to admit). It all started from there. The government didn't get 30% of TCs in governmental positions, the TCs retaliated with blocking the budget, the economy was going to collapse, Makarios proposed the 13 points etc etc.
So blaming one side for the problems of the 1960 agreements is easy, but it does not reflect the truth.