as did I StarlingMurmuration I developed depression after 6 MC's 2 of those in the year I conceived my son. I was on anti-depressents, Homeless when I gave birth, an ex who decided in the last weeks of my pregnancy to be an emotionally abusive twat. I had a traumatic birth, EMCS, nearly died on the operating table and again when I was on the ward. I was seriously ill originally admitted due to a suspected DVT. I gave birth alone. I had zero choice in that matter but my midwives were fantastic with one staying late over her shift to stay with me and coming in early the next day to see me on the ward. Excellent staff are what we need. Just like the ones I had not untrained strangers who are more likely to panic and make things worse.
I am not at all being dismissive of MH needs. I know them, I had my own and the very last thing I needed was to be surrounded by strangers all hours of the day having no choice to discharge myself because I had no support especially when my anxiety levels were that high. The staff knew this. They did their absolute best to counter my own mental health issues and its taken me years and several courses of CBT and counselling to get over all of the issues around my MC's, the traumatic birth and nearly dying twice. That in itself gives you an entirely different perspective on life.
I am wary of men due to past physical and emotional abuse and threats of rape from a family member. I still flinch if someone raises their hand near me too quick and its been over 15 years since I left that situation.
So yes, anyone who cannot cope for a few hours with out their OH's there overnight I do think is being incredibly dramatic. It's a tiny tiny fragment of time in a life in the grand scheme of things and would having a partner there make my experience any easier? No. I would still have lost a ridiculous amount of blood. There was no escaping that. I would still have the depression and dealing with the trauma for the months afterwards. I still would have stopped breathing, had a dangerously high heart rate and an infection that nearly killed me. It wouldn't have fixed my inability to breast feed (two inverted nipples no one on ANC bothered to mention when pushing the breastfeeding spiel) and certainly wouldn't have made expressing any easier.(yes I gawped at once or twice when using the ancient breast pump in the hospital named daisy 
) I expressed for 10 days even though I couldn't feed my own baby the milk because of the meds I had to take and needing a trip to nuclear medicine to check the state of my lungs.
It was bloody difficult, don't get me wrong but I still stand by the fact I'd rather ALL women had privacy, peace, dignity and feeling of safety on a ward, any ward, than Strangers able to move about 24 hrs especially through such a traumatic and sometimes life or death experience. I Cried, I fought with a midwife when my temperature went though the roof and couldn't see straight. But those hours after visiting, when everyone had finally buggered off home, were the only times I had to heal, to talk properly to the midwives because they weren't busy dealing with a constant barrage of relatives concerns. The number of apologies I had during the day when they couldn't bring my meds when I needed them or check my temp to make sure the infection was clearing was eye opening. During visiting hours the midwives acted more like adult day care supervisors than midwives.
so yes, I am still against it. I still think every ward should be patient only with visiting hours restricted. I still think staffing problems are to blame. I am wholeheartedly behind including general nurses trained specifically for maternity wards around mental health should be the norm on top of the usual OT's to help post sections, midwives and HCA's. I still believe, partner or not, a traumatic birth will be traumatic and I still believe 24 hour partners will reduce the levels of care available to women and in a lot of cases slow healing andin some cases make it far more dangerous. It will make life more difficult for the all of the mothers and babies who should always be the priority.