Many of these Treasure tokens compounded completely break the resource system that Magic is structured around
For example, in my Abedraft where I have (at least) one copy of every card in Magic, I will look to see if I can force Rakdos
Mutagen Man, Living Ooze is the perfect reason to quit procrastinating and make use of the sleeves with a deck I might actually like
Cynthia's Garchomp ex is another perfect example of a beloved duo combining on one card, as they have in the past on some of Cynthia's most valuable cards
paying 4 mana AND probably 7 life (although, for a Titan of Industry, you get 5 back if you want!) is sometimes rough
The name change didn't affect the format rules in any way, and many communities still refer to the format as Historic Brawl