Maybe briefly about cloth capes, but they really wouldn't have solved any problems for us. I believe Lego does them more for playability, fitting into tight cockpits and behind the wheel of a car, and it's less so for cost. For us, they wouldn't have saved anything in tooling at that scale because they're small anyways, and we really didn't have vehicles to contend with.
For Gallery pieces, Robert and I were discussing doing the AzBats one I'd designed with a cloth cape because capes at that scale can be their own tool. The BTAS Batman that I did had to have a reduction from proto to final because of that, (you can still see the original in promo photos, with a kicked up edge compared to the final's more conical version.
So, if there's room in the tool for one more part, it can be a cape without costing us any more. Plus, we had the backlog of parts to choose from too, and generally capes are pretty generic.
I also don't find that soft goods look very good at certain scales. For Lego it's very charming, and I actually dislike some of their sculpted ones, but for 3 3/4 figures, or even 6", I find it very off putting. For 3 3/4 figures, its usually done for playability, so I get it, but I was not fond of collecting soft goods Star Wars figures when they made the switch. For 6" it's probably more the tooling size, but they often just look bad.