So ... they are moving to a more-accurate pricing model, and you are upset?
Some things cost less than others
AWS (and every other cloud provider I can think of) does this with their pricing - bandwidth (fully-internal, cross region, external...), compute (EC2, Lambda...), storage (S3, EBS, local NVMe...), and more
Sounds like you have now gotten a clearer mechanism to understanding usage, so you can maximize your utilization, and you want to have an opaque view instead