Actually:
The intent is to eventually tax the amounts in the IRA's at some point, From the IRS's POV, the sooner the better. Therefore, you have the RMD Rules.
I like the stretch IRA rules. I think they are a good rule. The Money stays invested, but the feds start to get some money from the funds. Abolishing the stretch rules, which have only existed for 15-18 years, would be a real bad idea.
If you get $500k from a parent who dies, your effective tax rate on that, right now, excluding state tax, could be 44%. That is HUGE money grab by the government.
The whole ROTH Rules are being driven by investment lobby. The money is invested, but it is taxed up front, The government likes that. IF they restrict ROTH, which I expect them to do anyway, and they also blow up the "stretch" rule's, the government is in for a bonanza. There is supposed to be 10 trillion or so in assets moving from the baby-boomers to the next generation. A big chunk is in pension funds, IRA's and 401(k)'s
Rich