Definitely disagree, the Turks are doing quite well with the development. Having flown a test article and being in the process to finish their first proper prototype aircraft. As for compactness, I highly doubt they'd want that. Turkey wants to operate across the entire Levant, incursions deep into Syria if necessary, operating over the Mediterranean etc. which in turn dictates a certain size, especially when the aircraft is meant to deliver a payload on target that is useful. All of which makes it doubtful they wanted something particularly compact. It's more progress than the likes of India made, and being able offer a stealth aircraft for export in the first place is something they have over Europe (excluding Russia) in it's entirety.
Still, while a big national effort, FCAS is a completely different ballgame. And it is simply a fact that no individual European nation has the resources and funds to create an NGAD style program on their own. A purely national program would have to make SEVERE concessions in order to become realistic. And at that point you're not cutting edge anymore, not on the forefront of military aviation and not introducing next gen capabilities. At that moment you're just doing a slightly rehashed and modernized version of something flown elsewhere since the 90s to 2010s, a 5th Gen with extra steps.
While we're on the subject… I could imagine the Turks going for a future single-engine derivative of the Kaan (something along the lines of the Su‑57/Su‑75) for their navy.
The Kaan will be too big and heavy for the MUGEM and the planned naval version of the Hürjet is clearly just a stopgap solution.
Apologies for the off-topic...