If pups are receiving mental, and physical exercise, are given time to play/run, and potty. Short stretches of time in a crate will not hurt them. It also has benefits of teaching them how to settle, potty training. They have a safe place when you're busy.
I'm not saying crate them for hours on end. But 2-3 hours at a time, does not hurt them.
Not all those who wander are lost.
Life is just a leap of faith.
Spread your arms and hold your breath and always trust your cape.
Two things define you. Your patience when you have nothing, and your attitude when you have everything.