They don’t care, the massive majority of normies will never hear about it and those that do won’t care
Normies buy Redmi Note Pro Max + (or iPhone if they’re rich). Pixel is for devs and photos.
Can I just say, I’m incredibly pissed off at Xiaomi (and at the redmi sub brand by extension) at how difficult unlocking the bootloader is on newer devices. Like, you have to make an account with them, log in, and then wait 7 days, to unlock the bootloader, like WHAT? Why? I kinda understand the account, cuz spyware, but why the 7 day wait? So you’re forced to use their crappy bloated and spyware-and-ad-ridden system? It’s just really frustrating. Left a bad taste in my mouth to the point where I’m considering a switch to another brand for my next phone.
The Redmi brand is aimed at a mainstream audience, and there are probably enough people who will try to unlock bootloader without thinking through that Xiaomi wants to put some deterrance. Although I feel the Poco brand should allow easier unlockong, since it is aimed more at power users.