If Ajani's Pridemate is dealt lethal damage at the same time that you gain life, it won't receive a counter from its ability in time to save it
Since it comes in the form of an enchantment, you can also blink Contempt to place a fresh crop of counters on any new creatures that come into play, giving it much more long-term utility than its single-use board wipe cousins
The vast majority of my Blue Commander decks toss this in
With Klothys, God of Destinys ability you can get some much-needed rewards from destroying lands, since you not only get some mana out of it but also remove them from your opponents graveyards, ensuring they cant get them back
Worry not, Hammer Time is still a powerful option and solidly in the scrum of A-tier decks
But its great also vs BGx strategy, blanking a Liliana downtick activation or a discard spell