I think you're underselling the limits of the characters in BitD to do this, and ... also possibly underselling the resilience of D&D characters.
Most flashbacks are supposed to cost 0-1 stress, and, yeah, resists are costly, but not
that necessary when the position isn't desperate. I'd say the main limiting factor for Blades characters to be awesome and hyper-prepared is actually money. Oh, and also there are probably two times more PCs than there are players, and each comes with a 9-slot stress track...
D&D characters, on the other hand, are resilient as all nine hells (it's not like any scoundrel in Doskvol can reliably survive a fall from 10-floor building, and then proceed with their day as if nothing happened), but they can't just say "no, no, we didn't alert the guards". When the dice hit the table and the GM tells you what happens next, it happens. Deal with it.
So then we'd be discussing how robust that support is. Exalted...yes ruins of ancient civilizations to explore, Legend of the Five RIngs...a shadowlands based adventure could be a dungeoncrawl and I think you could do it for the most par with L5R rules. Longterm I'd be less apt to use either of those rules sets but that's not what we are talking about. IMO when you say something has NO support for something that means it can't be done in any capacity with the rules present in the game.
That's a very weird definition of "support" -- by which every system has support for everything (in any system you can just make judgment calls, and if we allow ignoring and modifying rules, then even the sky is no limit). Doesn't sound like a useful metric for me.
What I mean (and think is a common understanding of the phrase) by "[X] has support for [Y]" is "[X] significantly helps when doing [Y]". You know,
provides support.
Running a heist in D&D would require pulling rulings outta thin air at every turn, and just following the rules wouldn't lead to a cool heisting experience.
or one can look at it as there's a framework to base adjudication on, so there's plenty of support
Is there a framework, though? I wouldn't call "Choose an Ability, a Skill, figure out a DC, roll the dice, and decide what happens next" a framework, especially compared to, say, the Agenda, Principles, and soft move - hard move structure of PbtA.