As seen recently with stations being rammable (MD incident #1, 2 ,3, ect), despite that being reverted there are still plenty of ways to cause debilitating damage to a safezone sufficient to render it useless and unrepairable.
Something along the lines of "Minimizing damage to the safezone includes avoiding damaging important components of the station, such as its generators, atmospherics, shipyard terminals, administration consoles, ect".
The "clarification" for what the rule is intended to do is prevent the use of ramming, syndicate bombs, maxcaps, wide-scale glassing, AME bombs, and whatever else comes to mind against "Safezones". The rule inherently requires a degree of admin interpretation to still allow combat to occur (IE, repairable damage is fine, ect whatever), but so does the safezone rule in general.
Why bother protecting ships on the "Safezone" if the station itself is vulnerable to being destroyed on a whim, ect.