Trained in an around Jerez + Seville and as I say it was a few years ago but one's memory does not forget what I would consider my nearest (and only) near miss while joining to land caused entirely by sh!t poor ATC carried out in Spanish which was understood by neither me or my excellent instructor.
ICAO paragraph whatever you may say but I'm pretty sure that is not what I was taught. As you say this issue has been done to death here in the past.
But returning to my original point about Iberia, you had to know someone (maybe not a relative but that helped in two cases I knew of) on the inside with influence. The two I knew of were iterally waiting for the call to be told when to apply and to which desk their application was to land on.
Of course Iberia is only one Spanish airline, there are others.