[Nonfractal]

So on that theme, do long can motors cause more problems than they solve?

If more and more power is added to a car, it will get more and more difficult to contain irrespective of the motor layout. 

Anglewinders are not DeFacto "more difficult" but present different challenges.
The BSCRA use very powerful anglewinders on wood tracks but have chassis' designed to make the most of that power.

In respect to layouts, everyone has a favourite. 
Each layout has benefits and drawbacks. 
Clubs also have preferences and their classes are skewed toward that preference. 

Grapple with and master all formats 

Alan