Triangles and Sweep2 to a Point

I know that Rhino hate triangular surfaces. How problematic is Sweep2 to a point?

In situations like this where radius has to go to zero to match meet at a non-differentiable point, this appears to be the only kind of construct that works.

In theory, a NetworkSrf with a line at the end would work, but NetworkSrf gives chaos at such corners.

Hello- it is problematic, potentially in that the curtvature goers through the roof as the thing approaches the point - it depends on what happens next but making these locations smooth with neighboring surfaces can be a hard to impossible. But structurally, so to speak, it’s fine to have a singularity.
Sometimes a trim is the way out.