A rogue writer!

Six years is not consistent with Dave's teaching over the years, and it also contradicts his own website where he specifically mentions saving for retirement:
"If you cut your lifestyle, take a second job, and stay laser-focused, you will get out of debt. Once you’re debt-free (and have your full emergency fund in place),
you’ll more than make up for taking a year or two off from investing."
Remember, not everyone would be missing free money or tax savings for these reasons:
1.
Some employees do not have company matches. They are deciding between paying down debt now or putting hundreds of dollars in a retirement account for later, without any extra money being added to it.
2.
Some employees do not have enough money in their budget to receive the full match. If someone is still getting out of debt and building an emergency fund, they may have $100 a month that could be diverted. If their employer matches 50%, this would only get them an extra $50 a month. That original $100 could be better utilized for Baby Steps 1, 2, and 3.
3.
Some employees may not be contributing to a pre-tax retirement account. If someone is contributing to a Roth, then there are no tax savings for current paychecks.
4.
Some employees have a long enough time horizon to recover. If someone is still years away from retirement, they can make up for any missed years, particularly if they were to continue with the baby steps.