Awesome! Excited to see that Trimble folks are listening in.
I think that instead of saying SketchUp has lots of problems with its parallel projection subsystem, I should have said it has one long-standing graphical bug that causes loads of problems for users who find that sort of camera more conducive to their workflow.
Many users have found over the years that spending a little time orbiting around with the parallel projection camera causes geometry to disappear.
Google Search for “SketchUp parallel projection clipping”
The general solution is to switch to a perspective view. However, like the original poster, I need orthogonal views sometimes, and I actually prefer working in that mode where others prefer perspective mode.
I hope that answers your question. Thanks for making an awesome product.