Well, if you think about it, why not. My XL Yo has a 24" TT. My XL Soul Hooligan has nearly a 25" top tube. My 19.5" IF had a 23.6" top tube. I liked the standover of the 19.5" IF better, but the top tube was a little too short for my current liking. So if I could have had a 19.5" IF with the top tube length of say my XL you or maybe a bit longer I would have been stoked.
And yeah, pre longer travel forks a longer head tube would have been nice.