[TheAceOfHearts]

The legitimate use-cases for stealing focus are situations where an immediate response is required and timing is limited. For example: after you queue up for a ranked League of Legends game, there's a timed confirmation popup that appears when 10 players are found and which all players are required to accept before the game moves on to the draft.

In purely software spaces there's usually nothing that urgent happening. If something is really urgent it's usually going to be because it carries significant real-world consequences. Emergency alerts on smartphones are a good example of taking immediate priority over all other activities, especially if it's something like a warning of incoming missiles.