Nival’s answers about the future of Heroes 5.

However, caravans were eventually implemented due to numerous requests from Heroes players. As a result, the gameplay was sped up.

This is because such statements completely ignore the realities of multiplayer, where any self-respecting player hires a million low-level units for secondary tasks, because the question of "whether to waste time or not" doesn't even arise. Pace is everything. And these low-level units easily buy up all the dwellings, turning the task into a mere irritating routine rather than a strategic alternative.
In general, real multiplayer often introduces its own corrections. The developers of the third Heroes game once thought it was a good idea to give 15% necromancy to heroes of the corresponding classes. Nival also initially repeated this mistake, but to their credit, they managed to correct it and fix this and some other serious flaws.