If we’re talking about canon, I want to point out that they cast an Anti-Disapparation jinx over Hogsmeade in Deathly Hallows, when it was perfectly possible to apparate before. So at the very least we know the ability to cast it on an area isn’t lost to wizardkind.
And to address the more general idea, you may well want to cast a Muffliato or Repello Muggletum over someone’s house before you break in, to avoid attracting attention.
note that he doesn’t use it until they are defeated and presumably unconscious. This seems to indicate that it’s an ordinary point-and-shoot
Or it may also indicate it takes ten seconds to cast.
If we’re talking about canon, I want to point out that they cast an Anti-Disapparation jinx over Hogsmeade in Deathly Hallows, when it was perfectly possible to apparate before. So at the very least we know the ability to cast it on an area isn’t lost to wizardkind.
And to address the more general idea, you may well want to cast a Muffliato or Repello Muggletum over someone’s house before you break in, to avoid attracting attention.
Or it may also indicate it takes ten seconds to cast.