Chantal has no sense and is setting her channel up for further failure so that she can fill the empty void being a 450 lbs unemployed, friendless ogre brings. Her current situation is not sustainable because it fails at growing her channel and doesn't make up for it in additional income.
The fact is, the old videos she puts on her channel that are not streams remain profitable because of replayability and the placement of ads. But no one is going to click on a day old, five hour stream and because she's not able to add ads on the lives (only when they're archived, but again, the scope is limited), she is counting on super chats and there's just not enough, even in a five hour stream, to equal what she's losing in ad revenue.
Beyond that, eventually people are going to tire of the streams, especially with how her focus seems to only be toward her mods, and they'll check out too. At that point, the only reliable viewers will be a smattering of her mods.
In fact, you're already seeing a sizable dip in streaming views because she's oversaturating her channel.
I'm going to enjoy it when Chantal hits the point her income fails to match her expected expenses. That should go over well.