Melodics[1] got a few gamey features, but in the larger scope such tools are pretty orthogonal to actually learning to play piano - I wouldn't say they hurt, like some teachers suggest (they'd say the same about hanon warmups) but they help you becoming a better musician the same way writing the alphabet everyday would make you a better writer.
YMMV, I'm now at a stage where I am limited by my ability to play arpeggios and scales fast and accurately enough and tbh I think it's probably more productive to just practise scales and arpeggios than to practise the passage in question.
Scales and Arpeggios also bed the keys into your muscle memory which I've found it has made learning harmony a lot quicker as I can take a progression and experiment with it in the various keys and also experiment with different voice leadings by messing with the inversions.
But if the pressing concern is staying motivated and/or enjoying the instrument through playing then I agree that an excessive focus on fundamentals is going to be a slog