This is just a weird concept. Sure, not growing is risky in the existential, everything is risky sense. Profitability makes that far less scary.

The biggest cost for most SAAS business is salaries. If times get tough, letting people go is always an option, and if a company makes a 30% margin - which $1.5M and 500K profit is almost exactly - that means the non-salary costs likely need to grow by a few thousand percent before there is a profit pinch.

I'd take $500K profit and control over loss making and hope. But that's just my personal risk profile.