If your board of directors wanted you to sell the company to another company to trigger a liquidity event, there is a very real possibility that the product would be shut down after the merger completes. This is a common SaaS M&A strategy we see play out often, and it is not necessarily the CEO's or founders' choice or desire.

There may be cultural differences at play here, but you may wish to tone it down on the absolutism. There's an expression I hear/use frequently.

The idea is under promise and over deliver.

This is a much easier/healthier way to set yourself up and create a positive image for you and your business.

Framing it differently, your company absolutely might fail, BUT if it did, your users data would be safe. This shows a lot of foresight and should alleviate most of the concerns prospective customers may have.

It is better because you're not providing absolute guarantees for scenarios that are outside your locus of control. At some point you will likely have a lawyer who you should run marketing material by before you release it.