[WATCH_D0GS UNITED]

Indeed, making the team check at ham_spawn will save CPU because it is called once in the spawn moment,
while the StatusText is called a variable amount of times/sec. depending on the player aim, but not that many times per second, around 2 or 4 (per player).
It is not called when not aiming a player/hostage.

But you shouldn't forget that this is when aiming. The targeted player is detected in this moment.
How will you retrieve the <targeted> player in spawn?.

The team check in ham_spawn is valid only for the iPlayer.