Help for SimplifyCrv claims “NURBS curves are broken apart at knot.”
https://docs.mcneel.com/rhino/7/help/en-us/index.htm#commands/simplifycrv.htm
This does not appear to be true in my testing. SimplifyCrv does not break apart NURBS curves at knots, neither at simple knots nor at multiknots.
Rhino 7 SR8 2021-6-30 (Rhino 7, 7.8.21181.05001)
License type: Commercial, build 2021-06-30