Rogs may need a some Beta testing
It looks like the update is about making Rog's care less about their bombs growing to Combo X. Which is opposite of what progressive damage scaling does. Buffing a bomb from Combo I to Combo V only adds 70% damage, but buffing it from Combo V to Combo X adds 300%.
If you are changing the approach of Rog playing experience you should change the progressive system to adding ~40% per 1 Combo.
That and the fact that now there is barely any start of turn damage alone cuts Rog's damage output in half.