Should Ohmwrecker be modified to also counter Zz'Rot Portals?

One thing I noticed today while reading the Ohmwrecker description was that it doesn't give you extra speed near Void Portals. This seems like an oversight, but it also made me think of something.

Right now, Ohmwrecker is only really at its peak if rushed, when there are plenty of towers to use it on. Unfortunately, rushing Ohmwrecker is never really viable, as it gives you no real combat stats that aren't exceeded hugely by Sunfire Cape or Randuin's Omen (both which are more important buys).

If you get it later on, its active isn't worth the cost because there aren't enough towers to disarm. Riot's always been pushing for "kill towers faster", leaving the optimal window for Ohmwrecker extremely small.

To remedy this, I think Ohmwrecker should have some sort of functionality that lets it act as a hard-counter to a Zz'Rot Portal. Either it could shut down the portal temporarily, or deal heavy damage to it, or something. There, if you've got an enemy team with more than one portal split-pushing you, take Ohmwrecker and wreck those gates.

Another benefit of this would be that it would prevent mass Zz'Rot Portal team compositions from being too overpowered. I'm already seeing people worry about teams with Heimerdinger and Azir using mass portals to just steamroll-push lanes down. Being able to shut down portals with Ohmwrecker would make such a strategy counterable, provided you can get at the portals.

And finally, I won't feel like I'm buying a trap item when getting Ohmwrecker (on the rare occasions I DO get it).