Right. I would never have any device like a camera be directly connected to the internet and instead cut off that device from the internet in my router software and only access it from outside via a VPN.
Not that this whole screw-up should be excused in any way or downplayed.
I always thought that the main selling point of their devices was that you can run your own Ubiquiti server at home and keep everything local? They are always portrayed as the not-so-shitty IoT company.
I bought the M3 right when they came out for about 320€ (I think they were 380 but there was a deal). And got a reimbursement about a year later because of technical problems. Because I really liked them I bought them again and the price then was about 180€.
And I’d say the M4 don’t add so much to warrant the difference over the M3 at their current pricing.
In any case, Apples product will never see deals remotely close to this. (Maybe 50€ off if the stars are perfectly aligned)
Settings one up is easy, blocking internet for a network device on the router level is trivial. No need for complicated setups IMHO.