Nefermandias
Hero
You chose an example with fairly low stakes though. It usually doesn't really make much of a difference when the party is shopping or hiring underlings.Depends whether the priority is efficiency in the fiction or efficiency at the table.
How many times, for example, have you and your SO gone shopping and to get it done faster, each hit a different store in the mall rather than both going to both?
In the fiction it's the same: the party splits up so the MU and the Thief can go get info from the MU's guild while the Cleric checks in with her temple and the two Fighters go looking for a hench to hire. Afterwards, they all meet up and compare notes.
Woefully inefficient at the table but more efficient (and probably more reflective of what the characters would actually do) in the fiction. To me, the latter is more important.
Now, splitting the party during dungeon exploration (and I'm not talking about the rogue scouting ahead) can be a real problem.