Formula 1 already is extremely boring so no problem if they add electric. Perhaps a few exploding batteries might finally give some excitement!
Last season was good. This year should be interesting.
What might have made it more 'boring' is that the engines now hardly break as they have to use 4 power-units for 24 races, so they're quite de-tuned compared to before with lower RPM.
For instance in the 90's till early 2000's they used a new engine every race and sometimes even in qualifying, which were tuned to almost 20 000 RPM and so engine blow-ups happened more regularly and added some unpredictability in the season.
Also, the current rules hardly allow any on-track testing and there are now cost caps which teams are not allowed to go over, so if a team starts off dominant it's more difficult to close the gap. This is probably the biggest issue, in the past if the car was a dud they could bring in a B-spec, but now with the limits to track testing and the cost caps limiting the budget, its more difficult to develop or change the car.