I’m glad they shut it down. An inaccurate tool is worse than no tool, especially if teachers are using it to check student essays and punishing students for false positives…
Even just more generally, people were trusting these detection tools not realizing how inaccurate they were, which causes huge problems both due to false positives and false negatives. Better to remove the useless tools now and work on a better solution, if one is even possible which I’m not sure it is.