If we compare the BMW 5 series vs E class design change, this is my analogy:People might criticize the F10 and F30 for looking like an old BMW and not want to buy them. I think you're making up your own mind. The W212 was also a radical change compared to the W211, but how successful was it?
5-series:
1972 E12 to 1981 E28 - Evolution
1981 E28 to 1988 E34 - Big Change
1988 E34 to 1995 E39 - Big Change
1995 E39 to 2003 E60 - Big Change
2003 E60 to 2010 F10 - Big Change
2010 F10 to 2017 G30 - Evolution
2017 G30 to 2023 G60 - Big Change
E-class:
1968 W114/115 to 1976 W123 - Big Change
1976 W123 to 1984 W124 - Big Change
1984 W124 to 1995 W210 - Big Change
1995 W210 to 2002 W211 - Evolution
2002 W211 to 2009 W212 - Big Change
2009 W212 to 2016 W213 - Big Change
2016 W213 to 2023 W214 - Evolution
Personally I think the generation F10 and W212 models were both not exciting and bland, although both vehicles were excellent to drive and be a passenger in. There is a big difference in the way W212 drives compared to W213, it is much softer and has less responsive steering and gearbox.