Nonsense.In other words, whatever the algorithm is, backtesting would be a requirement. Making the statement that no backtesting is required simply says the guy hopes you'll fall for it.
Perhaps he doesn't use conventional backtest engines on platforms like Ninja or TradeStation. But I doubt it. I'd make a bet in Vegas that he did substantial backtesting with every update of the algorithm. Only a fool would run a strategy live or waste time in sim without substantial backtesting while modifying and correcting the code.
Developing and writing code requires continual backtesting to ensure viability of the idea as well as the programming. That's how a scientist looks at it.
If you want to back test, fine.
But I write algos and live trade them without backtesting.
What's more important is no glitches in the coding.