Certainly it gives you more options than "eject", and the ability to do tracking and two-way messaging is a huge enhancement. The only issue with leaving breadcrumbs is that if the unit stops working it's more likely to alarm anyone ashore who might be following your progress. You wouldn't want a SAR effort to be launched just because of a simple device malfunction.

However, I think there's a place for both. I had my EPIRB battery replaced once. When the next 5 years is up I'll re-evaluate whether to replace the battery or the unit. Probably the unit, as 10+ year-old electronics that have been left aboard the boat in heat/humid/cold might be of questionable reliability.