My kids (teenagers) would think it both hilarious and disturbing if dh asked dd on a 'Daddy Date' as they are well aware of that kink. But both dd and dh have very fond memories of their 'Daddy daughter' days back when he was a part time SAHD and ds (but not yet dd) was at school. Daddy daughter days didn't really consist of them doing anything particular, she just enjoyed the one on one time.
The linked to post is iffy to me mainly because of they way she has phrased it. It's definitely not just a dad taking his little girl out for cake.
'He helped her pick out a dress for her to wear, got a little purse ready for her, held the door open for her, and made her feel like a princess. She loved it was so happy when she got home. She will always know how she deserves to be treated because her dad sets such a high example.'
And yes it is really got millions of likes that's pretty weird too. Dads spending time with their children should be run of the mill normal, and dads treating their very young daughters as dates should get more of a 'yeeugh' than an 'ahh' reaction.