I don't think shaving a couple of mm off the top of the action frame makes it low profileand in fact I don't think the old profile was really the problem. The things that turned buyers away from most of the Brownings and some Mirokus was the weight distribution, balance and dire triggers. The triggers are better on later guns, and the MK38 has had lighter barrels and better handling for years. Browning may, just may, be smelling the coffee at last and starting to offer guns again that people actually want because they shoot well, something that really hasn't happened since the 325.
They can't live forever selling to people who'd buy anything just because it has Browning written on it, and after the train wreck of the Cynergy they badly need something to go right. I wish them well with the 725 but it's not really much more than an MK38 with a Browning badge, something they could have had years ago.