By my reading of the T&Cs, you're correct. The legacy GoH is only available until 28 February of this year.
I see 2 reasons ...
First, the extension of time to use the legacy benefit to 28 Feb 2026 is limited to any such Member who has Globalist status that – as of December 31, 2023 – expires later than February 28, 2025. I don't know how that would be possible, but I assume there is a way otherwise Hyatt wouldn't have added the clause. The only Members I'm aware that had Glob status on 31 Dec 2023 that expires after 28 Feb 2025 are those that earned LTG by 31 Dec 2023. Anyone else that had Glob status as of 31 Dec 2023, would have that status expire on either 29 Feb 2024 or 28 Feb 2025, depending on if they requalified for Glob during calendar year 2023.
Second, the use of legacy GoH by LTGs explicitly ends on 28 Feb of this year. Why would WoH end the benefit for LTGs while allowing Globs to use it for another year? This would be a significant devaluation of LTG benes.
So it’s your contention that LTG’s only get it until 2/28 of this year, but Globs who requalified get it until 2/28/26?
I mean it’s possible I suppose since LTG’s get 5 GOH certificates automatically each March.