This case is quite similar with Disney+ case.
You press ‘Agree’, you lost the right to sue the company.
It’s not really legal in the UK. It’s unenforceable on claims under 5k and for claims over 5k the courts will make a case by case decision if arbitration is appropriate.
However, lots of companies still add these bullshit clauses as a way to bully people out of seeing a lawyer.
For sure and, even then, in uk law, you can’t sign away your freedom to take regular legal action against someone who caused you damage, due to their illegal actions. Something like the one in the article would be, rightly, dismissed as a repugnant clause.