I really like this feature. Thanks for having it. It was useful for me because ...
Spent a couple of days intermittently wondering why a pool wouldn't come back properly. Remeasuring is just taking forever (days!) but hd-sentinel shows drives all healthy. Accessing drives individually was fast-ish. Couldn't tell whether any lag I experienced was because of it being bogged down by remeasure or if it's really slow. I even have new hard drive enclosures in my cart ready for a purchase!
Finally, came across this thread and decided to eject a member (had my suspicions) and the pool is blazing (albeit missing the files of this drive of course)! But, in my situation, a semi working pool is better than a non working pool. Now I can work on this bad drive separately. i.e. scandisk, recovering files, whatever.
In hindsight, I suppose I could've physically ejected it, but this gives a nice flexible troubleshooting technique for these half broken mysterious sort of , but not really broken drives I guess.