As an end-user security professional, I say . . . it depends. It depends on the industry, the application, the organization's risk tolerance levels, cost/benefit analyses, perceptions/PR (perhaps especially important for gov't contractors), network resources, etc.
I have used some Hikvision products in the past, but tend to not install them now. Not because of real or perceived security risks from their use, but because they do not fully integrate with the VMS we use. (I will refrain from lamenting on why is it that "ONVIF compliant" seems to mean something different to every manufacturer and VMS software provider I've come across.)
In my opinion, if an end user has a well-segmented and isolated - be it air-gapped, secure VLANs, etc. - network infrastructure and security controls in place for security camera use, it makes the issue far less relevant than for a user who hangs the devices on their general network and leaves the password at the default setting.
The real key to secure security systems is in their implementation: design, planning, administration, policies, procedures, oversight, use of security best practices, etc. Any poorly designed, poorly implemented IT system (and that's what camera systems are these days) is a huge security risk - it doesn't matter if you install [insert any "well-respected" camera brand] or Hikvision.
Does equipment specification play a role in securing a networked system? Certainly. But if the network is properly done and isolated, the camera selection plays a much smaller role in the bigger picture. I'm not saying it has no importance, just a much smaller significance.
As an FYI to the more avid Hikvision detractors - I am neither supporting nor defending Hikvision or its products. Neither am I willing to bash them when many of their security related issues can be avoided by properly designed, implemented, and maintained networks and security best practices (did I mention . . . change the default password!!). I would love to use more of their products because of budgetary constraints - they offer decent to very good product lines at very competitive prices.
So again, my response is . . . it depends. Everyone's mileage will vary. Everyone's opinions will vary.