The Azeri claims you refer to and the implications made in the relation to an alleged document published by some Azeri media, are absolutely wrong and inadequate.
Peter Stano, Lead Spokesperson of the EU Foreign Relations and Security Policy Service, stated this in response to an exclusive inquiry of Channel One's 'Lurer'.
"I can only reinforce what our US and Armenian partners said already on the topic: The trilateral EU-US-Armenia meeting in Brussels on 5 April was about our bilateral cooperation with Armenia with the focus on economic issues. Security was not on the agenda of that meeting.
The only official outcome of the meeting is this joint press statement of the participants published
afterwards," Stano stated.