.Net as a framework is designed to get stuff done so you can go home and play with your kids, not pander to the whims of a CEO with his head up his behind.
According to him, I shall have to "unlearn" all those ever so bad practices and technologies such as ORM/DDD (NHibernate), DI (Autofac), SoC (MVC), SOLID, Messaging (NServiceBus), SOA (WCF)...
I will give him one thing; at least 75%+ of the "developers" on the market in the UK couldn't put a web page together without the ASP.Net webforms designer but the same is true with all technologies otherwise we wouldn't have dreamweaver and the likes.
The guy is a total muppet.