Respectfully, this isn't about how someone "feels" about it - it's about the fact that Stake showed a clear on-screen offer with no disclaimer, then refused to honor it.
Whether others ignored it or shrugged it off doesn't make it right. Normalizing this behavior only encourages more misleading tactics.
If they want to change requirements, fine - but update the message so people don't wager based on a condition that's no longer valid.
This was not done.
Yeah you are right about the message in general. They should display this for accounts that are not eligible, they should work on that. It's basically displayed for every single user, probably even for like silver VIP or something (not sure though). That's the issue on hand and if they would fix this there would be no confusion.
My friend was also confused and disappointed of course, since he thought he would get his host back. When the display shows 100% of course as a player you would assume he will get his "reward". I doubt it's intentional or anything. Just somebody was to lazy to program it right so that not every single user can see this on the interface.