Ah, I see the language now.
40K has it also. Did 50K not?
From ft wiki
[2] Is this card churnable?
In the past, this card has been easily churnable. However, in December 2014 Citi began inserting language into some applications and landing pages disqualifying current Hilton Visa cardholders & requiring an 18-month wait from the date of the previous card's opening or cancellation. The 50K application link listed above does not include this restriction, and FTers have confirmed that they have been approved through this application despite being current or recent holders of another Citi Hilton card.
[3] How frequently can I apply for these cards?
You can only apply for one Citi card in a week and two in two months (60 days)
. With the expiration of the 50K link above, you must now wait 18 months from your last closing or opening of a Citi Hilton Visa before you can earn the bonus again.[4] Do I have to close my previous card before reapplying?
No. As stated above, in December 2014 Citi began introducing new application pages requiring an 18-month wait since opening or cancellation of the prior card.
I guess they changed it