No way is he 5 feet tall.
His ex wife Rhea, is 5 feet tall, and on every last picture of them, she is 4-5 inches taller than him. Even on this pic where she is wearing flat shoes, she is about 4 inches taller
https://cbsmix1065.files.wordpress.com/2012/10/danny-devito-grace-lucy-daniel-rhea-perlman-photo.png
So why have they lied about his height on here? He is no more than 4 ft 8.