The game itself is a lot of fun, but there are a few issues the need work at this time. Hype and early release teething issues don't really get along though, it's a new game after a successful first game in the series, any issues will have amplified reactions. A lot of the crashing was due to issues from the original release version and the academy, if you have only played since after the second patch, it's likely you've not see these.
There are a good number of positives in the design decisions, the game is showing a lot of potential, but there are equally a lot of concerns, and valid ones at that, about issues in game. Whilst you note what you call a cover drive, what you're probably doing is a more standard offdrive that's a bit straighter, there is a well known issue with proper cover drives. Equally, there exists an issue where length has been set as a too accurate with bowlers, making it too easy to hit your lengths time and time again. The fielding issues are also understandable. Beyond that there are numerous issues they're working out with the academy, as well as career mode bugs as you've encountered.
Given time I'm the issues will be sorted, and we'll have a game that is considerably better than DBC 14, but there are understandable concerns at this time.