Interesting. When I applied for their Rewards WEMC several years ago, I got the same message and I called them. All it took was I had to verbally confirm my income.
BMO has refused me PSing with WB a few years ago. I think they're one of the toughest against churners, so I haven't gotten any cards from them since. I used to have their premium account to get things like a card AF waiver, limited amount of free international ATM (standard 2.5% FTF still applied), but now I got Stack, I have only one no fee card with them.