I'd cut TAI some slack here - as a state-owned enterprise they were obviously operating under a political mandate to maximize indigenous content.
I'm not so sure about that.
Therefore they sought to use a Turkish engine
The Anka-A/B and even some S use the Thielert Centurion 2.0S, the PD-155/170 came only later on.
Besides the Aselflir-300T, the Anka has flown with MX-15's and Safir-380HD's
Baykar on the other hand simply bought proven components (Rotax engine, Wescam EO) off the shelf from experienced international suppliers, and consequently enjoyed a smoother ride.
I'm not so sure how a foreign EO turret contributes to a smoother development. And the engines were from foreign origin on the Anka, until recently.
but many of these owe their relative maturity (and possibly their very existence) to TAI ironing out the kinks on Anka
Again, I'm not so sure of that.
It's an unfair comparison.
A state owned and funded institution failed where a brilliant MIT student succeeded who started in a garage designing UAV's. It's thanks to the TB-2 that Turkish foreign policy could to be upheld in Syria, Libya and in Azerbaijan. The Anka with their relatively high price and low-rate of production would not have accomplished what the TB-2 has accomplished. A small, tactical and relatively cheap UAV beat a bigger, strategic and more expensive UAV.
Like I said, it seems TAI is picking up pace in their UAV department. Now with various UAV designs coming online in Turkey, the Anka is becoming redundant by more capable platforms. It's not a surprise to me that the Turkish government requested that some Anka production slots to be converted into Aksungurs.