Dave Ramsey is an amateur. His entire stance on housing and the position it puts people in heading to retirement is crazy town. While I do agree that paying off a house is a great thing to do, it is not more important than investing money when you have a lower than 5% interest on the mortgage. Here is the thing, it is way, way, way better to have the money invested to pay off your house versus paying it off faster for some reason.
Ramsey’s plan reduces risk but also probably reduces your final net worth vs a strategy with more investing in the market. If you follow the Ramsey plan, you’ll absolutely be a millionaire in retirement. If rather than pay off your house in 8 years, you do it in 30 years and invest all those extra payments into real estate or the stock market, you’ll probably end up with a net worth that’s 20% higher. But there’s also a 10% chance you have bad luck or bad timing and end up taking it on the chin and coming up short.