The entire video is definitely worth a watch, but here's the quote in question regarding the English voice production...
Most already figured that the pandemic was what took Persona 5 Strikers so long to get localized, but now we have confirmation. Either way, I'm glad that everyone involved stayed safe & healthy.Erika Harlacher said:It was like about to start – right when quarantine went into effect, and then we had to like kind of put it on hold, thinking that we would just go back into the studio in a couple of weeks, and then we didn't. Then we had to come up with a plan B.
Source: Cassandra Lee Morris (YouTube)