And that whatever you demand will count as an "unjustified demand", which the usual charge for provinces taken, so this doesn't perform much better than conquest CB.
IMO, the utility of that particular reform is not to no-CB using it + diplo. If you have diplomatic ideas, you can probably cough up a claim + cobell etc as necessary to get into the wars you want w/o it killing diplomat time too badly. Where this shines is if you are planning to truce break, which goes down to -2 stability and 2 WE.
That's getting into the neighborhood of tactics like scutage client state feeding as you repeatedly truce break the Ottomans, reduce WE once (maybe), buy 2 stab for 50 admin, and not net out to losing any absolutism. Make sure to mothball whichever forts you don't demand in the deal, and run them down ASAP the next month after you break truce. Don't let them rebuild anything.
Hmm, I haven't tried it in ages, but if you declare on someone where you have military access, that's also typically a -5 hit, which would go to 2 with this combo. Maybe it exiles you these days though. If not, there might be some fun alpha strikes to be had too.