Honestly, i have been wanting to suggest to my leaders that we should go to on-prem for primary, and use cloud only as extra for peak traffic and/or failover, etc...but, the culture where i'm at is so bought into cloud as if it solves all problems...and then, in the next breath they all ask me to drastically reduce cloud costs and ensure 100% uptime at all times 24/7/365 (1005 uptime without complexity and without any added costs!).