Why the delay of the hybrid variant?

invalid@example.com (Nuke), Nuke
Wed, 14 Feb 2024 03:29:37 +0000
🔋 Lexus GX550 Hybrid

Any theories why the GX 550 hybrid has a delayed release date? Lexus has said it will be forthcoming, and will share the hybrid drivetrain of the Tacoma and Land Cruiser. As Lexus is the pinnacle of reliability, are they awaiting this drivetrain to be proven in the Toyota models mentioned?