SLAs with public cloud providers don't mean what people think they mean (not saying you do, but i bet a lot of other readers do).

SLAs just mean "if you can prove that we didn't meet our SLA, we'll give you a refund, and by refund we mean some % of your bill for some duration".

It's not nothing - it's obviously $$s, and so teams get measured and have goals about improving their availability and latency.

But most customers don't seek out those refunds, and so there is no real pressure connected between the SLA and their true performance (which is often much BETTER than the SLAs, but not because of the SLAs)