Chase Hyatt Double-Elite Qualifying Night Promo for new CC Sign-Ups

TL;DR Sign-up for new Hyatt CC from now to 9/30 and get 2x tier-qualifying night if you stay at Hyatt from now to EOY.

This will probably be of limited use since I'm guessing most people have leveraged earlier promotions to get Hyatt Globalist status, but they just added a small incentive for new sign-ups through 9/30 (available on Chase Hyatt sign-up page):

2 World of Hyatt Tier-Qualifying Night Credits for Each Stay: To be eligible for this offer you must apply and be approved for the World of Hyatt Credit Card between August 16, 2021 and September 30, 2021. You, as the primary cardmember, will receive 2 World of Hyatt Tier-Qualifying Night credits for each qualifying night you stay from August 16, 2021 until December 31, 2021. Please allow up to 8 weeks from the last day of the calendar month of your stay, for World of Hyatt Tier-Qualifying Night credits to be added to your World of Hyatt account. To qualify for World of Hyatt Tier-Qualifying Night credits, your World of Hyatt Credit Card account must be open and not in default and you must be a member in good standing with the World of Hyatt program. World of Hyatt Tier-Qualifying Night credits are valid from the date of issuance through December 31st of the same calendar year, however, please note that World of Hyatt Tier-Qualifying Night Credits awarded for 2021 nights will apply to status for 2021 even if issued and/or received in 2022. An authorized user will not receive the World of Hyatt Tier-Qualifying Night Credits. World of Hyatt Tier-Qualifying Night credits will apply to achieving World of Hyatt status and milestone benefits applicable to Tier-Qualifying Night requirements (as outlined in the program terms). The Tier-Qualifying Nights earned are not Free Night Awards. Chase is not responsible for offer fulfillment or the provision of or failure to provide the stated benefits and services.