For what it's worth, we run "edge compute" with two separate mid-sized CDNs and pay about $0.005 per GB. This required a bit of negotiation, but has no minimum commitment and is on a monthly term. Yes, even lower fees can be had if you build your own infrastructure and pay for bandwidth on a CDR, but this is a fairly apples-for-apples case where we are not doing that.
So yes, AWS, GCP, Azure bandwidth pricing is very high. Oracle is, amazingly, the outlier with lower bandwidth pricing.
Oracle has to compete somehow (they're a distant fourth in public cloud market share) and bandwidth pricing is an obvious place for them to try. It's compelling, but I don't know if it's compelling enough for a lot of people to be willing to give Oracle money...
I wouldn't be surprised if data transfer fees as a percentage of their total revenue account for >10%. As long as GCP (standard tier 0.085) and Azure (0.08 non-MS-backhaul standard routing) don't charge extremely lower rates, it's not beneficial to lower their rate.
I always assumed that when they stop dropping the price of older instance types, storage types and other such things, that’s their subtle way of encouraging both new and existing users to chose or migrate to the newer ones in order to not just get the new features but to obtain the cost savings.
So yes, AWS, GCP, Azure bandwidth pricing is very high. Oracle is, amazingly, the outlier with lower bandwidth pricing.