I'm ok with paying for services like this that provide loads of value. I expect there's increasing diversity in terms of Stripe's customer base and how they use the product, and trying to pick a single percentage price point that works across all of them is no longer feasible.
That said, I'm quite unhappy with Stripe's pricing as an AU customer. We're paying exorbitant rates to convert USD to AUD (think retail bank rates despite transacting multiple millions a year, ~3x what we'd pay Transferwise). There's no option to settle in USD, and a lot of our expenses are in USD, so we then pay another currency conversion fee when we spend.
It's problematic to the extent that we're considering whether the ongoing costs and hassle of setting up a US entity, dealing with international tax, compliance, parent companies etc. would be worthwhile.