"...placing bigger bets on companies in later rounds, which is arguably a smarter strategy..."
Is it necessarily a smarter strategy? To me just seems this is the latest swing of the pendulum up and down the risk/reward curve. If factors change in 5 years, their "smart strategy" could begin to include more emphasis on consumer A's.
It's a smarter strategy at times I would say. For example, when the Fed is intentionally inflating a stock market bubble ala right now. That provides an excellent window to ride the public market to massive valuations completely unsupported by fundamentals (eg LinkedIn, Tesla, Splunk, Twitter, Facebook etc).
It's all fun and games until the stock market crashes again.