He's absolutely not doing the the EXACT same thing.
Mine and many others complaints about Ole was he was not implementing any identity on the squad. He had his tried and true method of two deep banks and hit with explosive pace on the break. A style of football that is a relic of the 90s. It was not, and was proven, unsustainable for a team with aspirations of winning silverware; hence why we bottled finals and semi finals.
In a shorter amount of time under ten Hag, we have a very clear style. Patterns of play are now obvious and while we're not 100% there just yet we can see what he's doing and where we should end up.
What was abundantly clear by the end of Ole's first season/interim period was once the feel good factor of losing Jose was gone, he and the squad looked lost on the pitch. That remained the case until project restart, where there are myriad reasons for our upturn, but mainly a new signing that was outperforming the best players in the league; we return the same point about sustainability here as well. There was no way Bruno was going to maintain those figures moving forward and once teams figured out how to handle him, and to a lesser extent, Greenwood, we reverted back to the shit on a stick football that marred most of his reign.