So I've been reading the back and forth on this and I just thought I should chime in on this point. I'm someone who wants a scav mode.
Regarding your point here however, this strikes me as a semantic word game rather than a real point. I understand you want to trip him up with "well you wanted hardcore didn't you? So here's some more hardcore". The thing is though, hardcore =/= unfair advantage in the way scav mode allows it. Hardcore to me means things like 1 life only, risked gear, on-point shooting mechanics, emphasis on player learning/experience, etc.
The problem with scav mode is the problem that everyone with eyes can see: it's the reason they had to put a cooldown on it. If you knew nothing else about what scav mode was, only that it was a 1-per-hour mode, you'd think "huh, there's something OP about that mode".
For me the main argument for scav mode is what Drakaar pointed out, sometimes you just don't want the "loss" worry when you play. The way I see it, then, why not just allow scavs but WITHOUT them keeping their loot? Or, someone above said they are worried about scavs having gamma containers, why not give them gamma containers ONLY.
So something like:
Allow scav mode
They can only keep loot that is in their container
Have a scav levelling system where you start out with a 2x2 container and work your way up to 2x3, maybe 3x3
New players will have a place to learn against humans and not just AI
You can play without the fear of loss
Players who think scavs have an unfair advantage (which they do) at least won't be able to get M4s/heavy armor-risk free, the most scavs will actually keep are salewas, attachments, helmets and pistols