What I'm describing is not an interstitial in the classic sense of, "Now here's a message from our website owners" nor, "Now here's some ads from our website's sponsors." It's a redirect. A real quick one. Have you never seen a classic 301? It's the difference between the website redirecting the page so quickly you cannot even stop it, with no messages or ads in between, which is all I'm envisioning, and what most people classically recognize as an "interstitial".

If you're also against classic 301s then my deepest apologies.

*flails*