If you're a perfectionist and have the money, take the engine in to
a dealer and have them check it out.

Or at least be aware your engine is now likely to have a shorter lifespan.
Don't expect it to live as long, and don't expect the next service to be as
inexpensive.

I think this guy has a 2 cycle engine which would negate the validity
of the information.

You are incorrect. As was clearly listed in the original post it's the
CRANKSHAFT needle bearings that that require immediate attention. Those
buggers are tiny and any amount of corrosion on them will quite quickly
destroy them and the crankshaft.