I realize we've had this discussion before, but I still don't see anything I would consider "math".
There's a limit to what I'd want to see cut only for "ease of calculation"; if it's manageable at a glance, it's manageable at a glance - how much easier does it have to get?
I really like that a simple success is now a DoS (because it avoids the initial confusion as to how Degrees of Success work; "So, I succeed.. no degrees of success..?". But I greatly prefer the previous systems, where it was a simple Success # - Target #.
At present, they are devaluing Characteristics, making the Characteristics Bonus overly powerful to the point where small increases hardly even matter, and all that matters are increments of 5 to 10. In a system where you would like to limit the relative scales (or at least, if you've got any sense, you should want to), making Characteristics an arms race to the next major increase is a terrible idea.
Half the reason the system gets eventual scaling problems is because people don't use modifiers correctly, but the other half is because of things like this, which will inevitably skew the system towards higher numbers (who cares about that +3 modifier from that advance; it won't even take you 1/3 of the way to a meaningful increase!), which means that to measure relative powers in a relevant fashion, you'll have to scale things artificially to compensate (i.e. in order for advances, alternate careers, "specialist archetypes" or whatever have to give out larger bonuses in order to stay relevant and stay in line with the fluffing).