no, it isn't
Stop acting like you know shit about shit. Everywhere in the world from Muay Thai and Lethwei to Boxing they don't do hard sparring. Only in the USA has it been considered normal. In the last 10 years a lot of gyms have recognized the error of their bullshit who continued to do so.
Stop talking like you've done fuck all in combat sports.
Not true.
Hard sparring forms the basis of boxing training pretty much the world over, for better or worse. It is literally one of the defining characteristics of the sport. Boxing sparring is hard, and has always been hard.