[tostr]

From the page you linked:

>Why Isn't Titan Classed?

[...]

>Classing assures ship owners, insurers, and regulators that vessels are designed, constructed and inspected to accepted standards. Classing may be effective at filtering out unsatisfactory designers and builders, but the established standards do little to weed out subpar vessel operators – because classing agencies only focus on validating the physical vessel.

[...]

> The vast majority of marine (and aviation) accidents are a result of operator error, not mechanical failure.

Did they not consider that the reason for this fact is, oh I don't know, maybe because the vessels have passed the checks for mechanical integrity?

You can't make this stuff up...