I can confirm that. I went in there yesterday evening when it said they were closed, and they were all open, and there were several other cars. After 6pm, I think all spots are opened up. I got 26KW initially , ramping up to I think 85KW after the paired stall opened up.
I've pretty much learned to ignore the status for Fremont. Maybe they cordon it off during the day, but I've only used it ~7pm or later in recent months. Also, I don't think it's a quarter end thing - it seems to be set that way for the past month or more.
Dublin on the other hand, I wish they had more stalls at. I think that one is just capacity constrained. There never seems to be more than 2-3 stalls free, and often it's 0-1 stalls. At that occupancy, one has to budget for a longer halt because of paired stall throttling.