Good point, Rock.
Interestingly enough, Electric is a good fit for pattern, as weight plays a big part in their stability. They can load up with batteries to some extent, and adjust the aerodynamics to fit the weight. In the past, depending on what has been needed, they adjusted the aerodynamics to help slow the plane down and also adjusted whatever they could to not be affected by wind. They have very specific needs from their planes' performance. Plus, their flights are of limited (even precise) times. So, yes, in their case, electrics seem to be a viable option, as their factors, which otherwise are factors of limitation, not only fit but actually enhance the scenario.
Pattern has always been too much work and not enough play for me. These gassers are great little engines, and to tell the truth, I've been waiting 20 years for really good gassers to start coming into their own in our hobby. So I follow these threads about the new varieties of gassers with great interest.