Louie Simmons among other notable strength coaches follows/endorses a similar methodology: lift heavy often in your competitive lifts.
That said most strength coaches agree a large part of eastern bloc success in the 70s and 80s wasnt primarily due to their programming approach but instead their understanding of recovery/rest days.
The point of periodization or unloading/reloading isnt to make you a better climber as much as it is to ensure you enjoy a long, fruitful career... specifically making sure you dont neglect aspects of your fitness that will catch up with you later in life.
Think of all the youngins that cranked hard for a few years and then burned out/disappeared. That’s easy. Building and living out a career long enough to take advantage of your experience without losing your physical capacity in the process is far more interesting, and difficult.