Even if you disagree, if a pentester uses Kali Linux (a Debian-based rolling release distribution), and they get paid for it, yes. Even then, Kali Linux regularly breaks, so a solution is to run it on VMs with snapshots (or communicate to each other when it breaks, or use a microSD card for a working version).

There's also a clear advantage: you get the newest versions of software much quicker than an OS which updates every half year (or a LTS version which gets updated less often).