I don't think Red Bull had any particular breakthrough this weekend, they just found the sweetspot in the rain (90% of this sweetspot being Max Verstappen), plus they didn't have to compromise between dry and wet sessions, maybe this helped them more than other.
I don't have high expectations for the remaining races, maybe with a bit of luck we can fight for a podium in Vegas (depending on how much McLaren will be hampered by not having their "special" rear wing, and Ferrari by cold temperatures) and Qatar; maybe there will be some more upgrades which can help.
Could be nice to seal the title in Vegas, also because during Qatar GP I'll be traveling and not able to follow