From the Article:
Unison southeast regional organiser Joshua Cooper told the BBC: "Ambulance and control room staff are working tirelessly to respond to every emergency call they receive and doing all they can to keep patients safe. Lengthy delays are causing much distress to NHS staff. Staff are already at breaking point after months of 'winter-style' pressures." (My bold)
While I don't doubt that Unison's statement is true, I cannot help but feel that it was rather ill considered; I suspect that the stress felt by people awaiting ambulance attendance and their families was somewhat greater.