If (for example) your AWS bill is higher than your revenue, no amount of growth is likely to make that healthy.
This is almost exactly untrue. Take an old school SAAS company with a few EC2 servers, paying say $500/month. If they have one customer paying $30/month they'll make a loss, but if they grow that customer base above 17 customers they'll be in profit.
That depends how resource utilization (really, AWS/cloud costs) scale with customer growth. Often it scales poorly when your SaaS is really a bunch of prototype-isp "MVP" code.
This is almost exactly untrue. Take an old school SAAS company with a few EC2 servers, paying say $500/month. If they have one customer paying $30/month they'll make a loss, but if they grow that customer base above 17 customers they'll be in profit.