The person who said that couldn't say where that information was from though and I haven't been able to find any reports stating that anywhere.
The nearest I can find is that bringing in the semi automated offsides wasn't added to the agenda at the relevant meeting between the league and the clubs so it hasn't actually been discussed. There are hints that club chairmen didn't want it to be discussed but we don't know if that's in the same way that club chairmen vetted the appointment of the Premier League chairman, was it all the Premier League CEOs or just two or three? Who knows.
FIFA's semi-automated offside technology (SAOT) will not be coming to the Premier League anytime soon. The English top flight has reportedly rejected the chance to introduce the technology ahead of the 2023/24 season. This is despite the fact that a series of VAR-rated blunders plagued the...
worldsoccertalk.com
There's also some reports saying Howard Webb has blocked it's implementation as they're still discussing which parts of the body should be used to determine offside.
The Premier League are likely to introduce semi-automated offsides eventually, but only after further determination on which body parts will be considered relevant.
dailycannon.com
Like most things surrounding VAR, there hasn't been much clarity, discussion or sharing of information around this decision.