Wow – that's incredible! A whole family's history just left to rot! I can only imagine that the owners retired, got older, moved into care homes and maybe had no children to clear things out.
The pots strewn around the factory make it look quite surreal. If it's just left to rot further, the pots will survive, and thousands of years in the future, archaeologists might describe them as "sacrificial urns"!
Great photos and documentation – a good record for if it does all get bulldozed.