To the contrary, of course you should know.

If you know anything about tech businesses, you know that startups being funded by massive amounts of VC keep prices artificially low initially, and that they then rise.

This is tech startup 101 stuff.

It's fine if you're not aware of this as an engineer. But if you're building a business and therefore have a business model where you've identified known risks, there's no excuse for you not to be aware of it.