I came across this information several weeks ago when researching a new pump (and decided not to post it).
These are better articles on the real problems with Medela. The mold in the motor is likely a common problem with all non-closed system motors (I can certainly see that my Avent-also non-compliant- gets milk in the motor

). I think the real issue should be that they promote pumping over BF (and as something to fall back on when BF doesn't work out, rather than actual help). When you need a pump, you need a pump, and some people only respond to certain brands or styles so it's unfortunate they have gone this route.
They shouldn't be doing it, but there are much bigger problems (Nestle) that should get more focus. A violation is a violation and they shouldn't get a pass because they are Medela. All corporations are like this to some degree or another so I think it's just about impossible to avoid shady marketing in any walk of life.
https://hoydenabouttown.com/20090310.4062/medela-bites-its-thumb-at-the-who-code/
https://dou-la-la.blogspot.com/2010/02/ready-set-suck-on-medelas-who.html
https://www.phdinparenting.com/2010/01/25/information-advertising-spam-medela-crosses-the-line/
I bought an Ameda PY. The closed system and the price tag were the main contributors, but the non-violation of the WHO code was a perk.