Quote from ARogueTrader:
The 90's growth did not have the same burden of personal debt we have today, an aging work force nearing retirement age, underfunded pension plans for those retirees, exportation of jobs overseas, $34.00 a barrel oil, terrorism concerns and related costs, out of control health care costs, etc.
Some of those "new" worries have been mitigated by anti-90's phenomena. Lower taxes, lower rates, cheaper labor and a more competitive dollar. The reasons you site make a more compelling case for macro weakness in treasury securities than equities.

In contrast one could easily argue that the internet has been one of the driving forces for deflation and even decreasing employment via higher productivity.