Any question answered...

Ah, sounds like an immensely bad idea then.

It's not such a bad idea. The seals are between the cup and the axle, so they potentially stop anything which has got past the bearings from going into the BB shell, or anything in the BB shell from getting to the bearings. Since the bearings are pressed onto the axle, and have their own rubber seals in the case of non-CULT bearings, the path is the very thin sliding fit between the bearing outer race and the cup. To be honest, if anything gets in there you really want it to have a way out, because it will wear the cups if it's solid material (no that big of a deal as the cups are disposable) or it will allow electrolytic corrosion if it's water, which might make it hard to separate the bearing from the cup. You should have grease in that sliding fit where the bearing inserts into the cup anyway, so there's very little chance that the cup seal will ever be called upon to do its job. All my UT cranks run without the seal, either with SR cups or with standard ones with the seals pulled out.

Since the SR CULT bearings have no seals, it would actually be better if the SR cups had the seals, to keep all the crap which can pass unhindered through the open bearings from ending up in a puddle in the bottom of your BB shell.