I grew up  thinking, because everyone else around me seemed to think or take as read, that what is now being called 'lad culture' was something we just had to accept. And while I was sometimes encouraged to be part of it, I felt that drinking to the point of illness and bullying relatively random bystanders didn't seem such a good thing to me. Though I have grown to understand that there's something about bonding with mates and telling stories about it afterwards which is the 'good' thing that appeals and holds it together over time. On the other hand, I suspect strongly that a lot of the claims not to recall events are no more than claims: it's a way to distance themselves from embarrassment and give mates a chance to 'admiringly' diss them.

Of course, another aspect of the lad thing is sexual. But given that there have been bawdy songs, jokes and banter that imply that women are merely breathing sex dolls with no real agency, then it seems likely that those who are encountered by the lad pack who don't fulfil that role are likely to be treated that way anyhow. And not everyone has the ability to hold their own verbally and attitudinally.
So given those sorts of 'facts on the ground', it probably is about time that we looked at lad culture.

One in four students (26 per cent) - and 37 per cent of women - had also suffered unwelcome sexual advances such as groping and touching, it added. Two thirds of respondents said they had been aware of students putting up with unwanted sexual comments, with just under one third bearing witness to verbal harassment because of a student’s gender. From: Universities must unite to beat 'lad culture' sexism on campus, claims NUS - News - Student - The Independent

There is another side:

the NUS looks set to undermine one of the best things about campus life: the chance to engage with fellow students and, in doing so, to grow and become a more rounded adult. This means experimenting, talking openly, making friends, sometimes being hedonistic. In trying to straitjacket students by regulating their behaviour through ‘zero tolerance’ policies, the NUS is doing the students it claims to represent a great disservice. from Spiked-online.

Though personally, I find that 'conclusion' (for it is the last paragraph of the article) a little disingenuous given that it does earlier acknowledge that it could lead to taking more seriously certain behaviours: "misbehaving students who ‘catcall or grope women students or undress themselves’ potentially facing disciplinary action, or even expulsion." In context it could almost seem that they are condoning groping or creating unpleasant harrassful environments for others. While it's true that sometimes talking openly can make things awkward and it is right for that to be the case. Sometimes talking openly is just plain bullying or wanton harassment with no mitigating public goods. Sometimes being hedonistic can also be done without abusing others, but when it is making sport of other people, that's a different matter. I don't think those things really contribute to growing and becoming more adult -unless they are challenged effectively. They are actually continuances and reconfigurations of rather childish and adolescent behaviours. By all means discuss them and test them, but something does need to be there to protect and safeguard the vulnerable from bullying.