Good point .... "games" like this should actually be called slot machines because that is what they are deep down.
I still like Gauntlet because I have a deep roster - but this rather nice mode really is almost ruined due to the awful talisman and character management. You spend more time swiping left than actual playing. Events like this are luckily over very quick for me - dump the stuff in you saved and be done with it. Not gambling with real money here - 109 Euro for a quick kick of swiping something into big mouth is ridiculous - well at least for me.