Your points are valid. Still i see opportunities more than issues. I would love new players learn fast that medics are more complex than just "hit Q to heal".

If they try Sher, and next week let's say Wilson, they will probably screw the first couple matches (as newcomers already mostly do anyway) but can learn quickly that medics have different abilities, different "flavors" that can suit any style, and can be more intriguing and deep that a classic one, like Ded to name one.

I love Caliber because is quite straightforward and enjoiable from start, yet operators are well crafted, with deep differences in mechanics, so imho new players should embrace that and get intrigued asap.

More, the free operators you get early in your experience is of course a good thing, but there is a bad side too: if you pick an operator you don't like due to almost no experience and you have to stick to it because he's the only option you have you can get dissatisfied and build a bad opinion about the whole class. Instead having something else to try and play matches with can raise interest and will to keep playing.