Not sure, i just included the removal of plastics requirement as part of my update - preparing for a seablock run now so just picking out the mod set, adding my own seablock update, etc. Was basically doing final checks in creative (checking research tree, making sure everything is aligned and making sense, etc) when i noticed this issue.
Just ran a test - it does work as a workaround - you can research the blue science lab this way. Still, probably best to just get rid of that plastics tech dependency