The issue with the B&E Breakers has always been maintaining strength vs the larger ICE, since they can only tackle large ICE if you have a lot out, and as soon as you start breaking things, they start trashing themselves. Since we’re in a large code gate meta, this makes Crowbar easy-ish to tax out. Also, you weren’t really drawing cards (other than hard drawing) until you found enough breakers to break ICE, which could sometimes take a bit.
Geist almost always ran regular breakers in addition to his B&E suite, so replacing them with other cards that also trash for valuable effects makes sense. In the Pirate builds, you basically replace them with better cards that also gain you accesses (better because you don’t have to worry about strength or program trashing), enabling you to run earlier, which draws you cards earlier. In Spags’ build, you basically replace them with the Off-Campus draw suite and a buncha money, meaning that you can draw through your deck by installing things as well as trashing stuff, and get money through stable drip econ and the meaty bursts of Calling in Favors.