Errr, maybe you should have gone to Wharton.

Just kidding.
The usual PE ratio that this dude brought up actually has nothing to do with future earnings, or with earnings growth, or with future revenue. (I'm not saying you said it did—just clarifying.) It's a 100% historical indicator. There are forward-looking PEs, but that's a different animal.
Aside from the historical vs forward looking thing, growth isn't a part of it. It's an absolute. (There's a separate metric (PEG) that is.) In fact, the only way growth works its way into PE ratios is indirectly: namely, to the extent growth expectations affect price.
(These prior two paragraphs are also the reason I was dismissive of PE ratios earlier. They suck.)
And that also is why it is NOT the case that what you said is true. Making earnings or revenue go "up" does not necessarily improve multiples. In fact, if those growth rates are lower than the ones "baked" into the price, the multiples can get worse.
Lastly, revenue can go up while net income (basically earnings, close enough) goes down. And vice versa.
I have a hunch you maybe know some of this. But I'm being pedantic for more casual readers so that they know there are LOTS of types of multiples, and there are thus different ways to spin the story depending upon which ones you use. It's not so cut and dried.