All slots will hit the brick wall eventually
When they are new they bonus all the time and pay 100+x regularly although still end up down. but give it a couple of years and they take 1000+ spins to bonus and regularly pay sub 30x lol
They get kill switched because the providers want us on the new slots imo. sadly Millionaire, Vikings and Chilli simply cannot be played in terms of new/newish slots though personally, chilli with 8 spins is totally pointless and the gamble just bins people off to often, and Millionaire loves an 87% fuck you on 8 spins, after going 500 spins to get it ffs.
Providers need to be forced to bin the gamble features imo, back to 12 spins with an increased win spin percentage, and with increasing multiplier.