Buffett is best known for investing in companies that are undervalued. If he simply invested as you describe, he would be lost in a crowd of investors who use the same criteria.
Also it's important to say that some investors are going to succeed by chance, not design, and there cannot be a consistent winning equities investment formula or method. More here:
I think you meant would NOT invest in that scenario. Warren invests in
- companies with strong reoccurring revenues
- strong moats around them to protect them from competitors
- companies that are the number one or two in their chosen fields
two guys in a garage with a vision of the future is sadly missing all of these things. That's a very unlikely scenario for Warren Buffet to invest in.