Can't speak for "security professionals" (I'm not one), but...
The Cloud-based security cam systems/apps appeal to a different but large class of consumers (like myself).
I did use
Blue Iris for about a year, streaming 3 [what was described here as] "sub-par" cams over home WiFi to a local PC (Windows 10, 4th generation Core-i7) not dedicated to BI.
Yes, it did work.
I prefer the simpler access of an app on my smartphone that I can retrieve event recordings from the cloud. The Ring mobile app does a pretty good and reliable (for me) job at that for me, e.g.
Ring.com Status
(I do not work for them or any other cloud/cam company)
Consumers like me:
1. Do not want to dedicate a separate PC to security system software.
(BTW, I upgraded my old 4th gen Core-i7 PC to a 10th gen Core-i9 with separate GPU and liquid cooling. I still do limited software development on it)
2. Definitely do NOT want to install/use rack-mount, server-class hardware at home.
(I mean, if I was going to go all the way, I'd want redundant power supply, and halon,
inergen, argonite, whatever fire-suppression system like in a real data center. Just saying..)
And no separate powered-switches: the home network router has ports, and if the cams can't use that a best, that solution is not going to fly with consumers in my class.
3. Do not want to run PoE or other cables all over the house just for cams. Power and coax cables were bad enough.
4. Do not want to deal with managing recording storage: files, folders, backups, etc.
5. Expect simple setup when the cam hardware arrives. Just power it up, a few clicks on a mobile app, and it begins recording movement in front of the cam.
None of that port and stream/channel numbers to enter/deal with, reconfiguring routers to get things to work, etc.
6. Will tolerate lesser video quality (to a fair degree), as long as we can see what's going on.
Have you guys seen military grade security/spy cams (on the other end of the spectrum)? Now that's what I call a real security cam, if I could get/afford one, lol.
Nobody seems to be talking/selling those around here, so that we can at least get an idea of "really high end". Wasn't there one that could pick up the brand name off a golf ball from 10 miles up in the sky?
7. Look for a similar community of users, both appreciating and complaining about their cams. I like being able to see video recordings from others in the neighborhood, just as much as I'd like to share my video recordings with that local community if something weird is happening. Opens up a whole new dimension than just looking at video from your own cam(s), to get the bigger picture of what's going on.