In a nutshell, you show how private placements got exempted from certain securities regulations, how those depression-era exemptions were expanded in the 1980s leading to "tons" of new activity, and how those exemptions may now be expanded further, making startups very happy.
What you leave out is that federal investment-activity standards have been shown by recent history to be wholly inadequate. You leave out the recent financial meltdown, a direct result of replacing 1930s era banking regulations with looser laws in the 80s and 90s. And you leave out the dot-com collapse, caused by dubious IPOs of the sort that SOX -- which JOBS would partially repeal -- was subsequently designed to counter.
This context is vital. The aggressively deregulatory JOBS act comes st a time when our regulatory framework has been exposed as woefully inadequate, in the midst of quickly ballooning tech valuations, and as we are seeing financial misstatements already from companies like Groupon that went public under the old, supposedly over-regulatory regime.
So yes, we should consider the historical context around the JOBS act. And I'd choose a vastly different frame than you have: Financial regulations designed to prevent bubble-depression cycles have been steadily stripped away since the 1930s, leading directly to the collapse of our economy in 2008 and the ensuing malaise. Now the JOBS Act proposes to strip these standards down even further.