Light Dep revegging 7 weeks in??? Help

So I have a small light dep. Strain is platinum purps 7 weeks in flower started from seed. Over half the plants look like they're starting reveg. I started covering them at 6:30pm every evening and tapered down to 6:00pm to make it seem like the days were getting shorter. I was gonna give them another week but some of them look like they're starting to fluff out...

All I’m seeing is a few new hairs popping out which has been normal in my light dep set up. 7 weeks in I’d be more concerned with plants herming which would be more a light leak issue.