First of all, I'm sure the shortage of minivans is related to Covid-19 and probably due to lack of parts. There's no helping that.
The problem with BEVs is that they are a very limited solution that does not work for everyone. Toyota is likely aware that it is going to be a transitional technology, and is making the decision to not waste too much resources pursuing this market. All of the cars companies that have will likely go through bitter process where they scale back or abandon their BEV investments. We've seen this happen with diesel. And if/when it happens again with batteries, it will just represent another example of Toyota being ahead of the curve rather than being stuck in short-term thinking.