Freeze/Squid has its use. Unlike Ice Bolt, they never had a direct copy which was strictly superior at damaging players. Ice Bolt only had a slight --difference-- when it came to targeting creatures, a chance to freeze, but you already had the card Freeze so why bother?
Now that Ice Bolt has a slight difference when it comes to targeting players it's more on par with its copy, Fire Bolt, which goes strictly for the kill.
I would not exactly say Freeze or Squid are useless though, especially in one of the strongest stall elements,
Water.