The beeping was nonsense measure from the start, once you have more than one piece of equipment with it, or moving more often than once a day and when you can not immediately stop what you are doing and looking for it, it gets completely nonfunctional (just because you can not locate the beeping source by hearing only), it just remain super annoying and so caused loss of focus of all people around (so making the safety level actually worse on the site).
Shameful is, this limitation had to be known from the getgo (effects of similar sounds were studied way before WW2), yet still regulators pushed it through as a claimed "safety measure". It just allowed the "We did our part, we can not be responsible for people not paying attention" excuses...