You're welcome to disagree, but just know that you're playing a risky game of chicken. I apologize to you for being critical of your opinions, but the facts are self-evident. Per the boilerplate CA lease agreement terms:
If the owner really did want any excuse to get the tenant out as soon as possible, the advice has given that owner several weapons to evict the tenant
that he otherwise wouldn't have had, because the tenant is now breaking the contract.
For breaking the terms of the lease, the tenants' 30/60 day notice protection is lost, and the landlord now has the option to unilaterally cancel in 3 days... Additionally, if the tenant is then unwilling/unable to leave in the allotted time, you can add an unlawful detainer (eviction) possibility to their outcome, which will travel with them on future personal history reports. This makes renting in the future much more difficult, as well.
If the owner has not given proper notice as defined by the contract, then the tenant has every right to deny access at that time.
However, the "But-but-but he started it!" defense does not find much success in the courtroom (or with mom, ever).
It's free advice, so do with it as you will. Just trying to be helpful to the masses.
Thank you,
-IrvineRealtor