I say no.
A TDF is just a mix of stocks and bonds, which gets more conservative as it gets closer to the target date. In the current climate, you should expect bond rates to drop for the next year or two as the fed cuts rates, and there are concerns of a significant market correction in stocks if there's weakness in the labor market. Add to it that TDFs are intended to be placed in tax-sheltered retirement accounts, so there may be a bit more taxable churn than other funds.
That said, if you're not sure you'll actually need it in 5-7 years and may hold out longer, there's no problem investing that money. But if there's a decent chance you'll need it before 5-7 years, investing it would have a bit too much risk for me.
So here's my advice:
- if you could wait longer than 5-7 years if needed, go with 100% stocks - far riskier than a TDF, but if there's a correction in the next couple years, you'll be buying on the way down and could end up having a larger down payment in 5-7 years, or you could need 8-10 years if the market corrects in 5-7 years (i.e. soft landing for now)
- if 5-7 years is a harder timeline, it should go into safe investments - CDs, treasuries (yields are falling, but whatever), etc