I’ve been running saint on an 11:36, so I’m theory an 11-28 will be fine?
It depends on the bike- the saint mech has the range to cover the cassette, in widerange mode but the short cage doesn’t take up enough chain to guarantee working with all bikes. Frinstance my 224 is pretty chaingrowthy so it couldn’t run with a 32T (unless you were happy to have the lower gears risk pulling the mech off) but other designs would probably be fine.
I like a wide range cassette- it’s more versatile, means you’re never left with the wrong gears, good for pedalling up transitions (like innerleithen pushup with its random gradients and fireroad crossovers) but most folks don’t agree. I prefer riding to pushing even on the dh bike I suppose.
Smaller cassette certainly means better chain management.