"Rent is temporarily reduced from £3,000 per calendar month till 31st July 2025"

Is this legal?

https://www.rightmove.co.uk/properties/156821849#/?channel=STU_LET

Please note rent is temporarily reduced from £3,000 per calendar month till 31st July 2025 from the start date of the tenancy, after the introductory period the rent will return to £3,000 per calendar month.

I know measures were taken to stop the joke that is 11 month tenancies, but I guess landlords will always find a way to steal people's wages.