This is a crazy take. If you can raise on good terms (or better) then it almost always beats debt. Debt can make it a lot harder to raise or take on more debt in the future.
They're profitable, they are going to get the best terms possible at this moment.
But if they're just scaling inventory, debt makes way more sense because they payoff is almost instant as soon as they fulfill the order to the customer. I agree the math is hazier when you're talking about massive capex, growing headcount, or other longer-horizon capital commitments. But if they just need to buy inputs to sell output to complete an order backlog, selling a portion of the company seems odd.
They can likely fund the purchase orders for 10% while they grow. Sounds cheaper than giving away a percent of all future profits. This is very common.