I don't think that really answers the question. If your customers are developers, then you need to bring something new to the table or you won't have any customers. You can't sell them someone else's products...

You're talking about two different things. "Technology" in the phrase "don't be seduced by the technology" means, the tech used to build your product. Not the technology of your product itself. Obviously you should innovate when making your product itself, but the tools used to make the product don't need to be bleeding edge for you to do that.

E.g. if you make a website, it should be a unique and engaging website. But you can make a unique and engaging website with Java. Even though it's old tech, your users will not know or care.

I understand what you're saying and totally agree. However, I was under the impression that the parent poster was talking about the products, not the tools, due to the way that it was phrased regarding "foundations".