That's really bad that the autobet could force people who are running strategies such as martingale to end up placing bets with higher and higher house edges that wouldn't even allow the "strategy" to function properly by winning their full sum of losses back.

Let's look at it the other way: suppose someone found a bug that allowed them to place bets that changed the house edge in their favour (for example, they'd be betting against a -5% edge instead of a 2.7% edge). Would Roobet have paid them out, as they want players to play the way they like?