IMO in this case I think as long as there is no proof then indeed we cannot give any reference to Pochettino.
We know that at first when talking about Potter, also with a series of slick performances at Brighton, many people gave Potter a lot of hope when replacing Tuchel, but this created expectations that were too high which made them have to be willing to fall quite hard.
At the moment Pochettino does see from experience that he is quite familiar with how the Premier League is run and of course even though he only won domestic titles at PSG this is also an achievement for him but in other matters of course we also have to reflect on what was before. The hope is that he can improve Chelsea's performance which has been destroyed this season but of course a heavy burden will also be carried and hopefully he can give his best according to the expectations given at this time.
You are right, high expectations sometimes bring disappointment at least that's what happened to Chelsea last season even though they have everything they need, including European top players and fresh funds. Some people argue that Graham Potter cannot implement the right strategy but we don't know what the real reason, what is clear is that at this time Mauricio Pochettino needs more effort to bring Chelsea to the best places especially next season the competition for the Top 4 is getting fierce because the Premier League has a newcomer like Newcastle which has been proven to have taken place at the 4th place
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Therefore we only need to see how Pochettino will contribute. It would be great if this actually lived up to expectations but of course we also have to be able to prepare for the worst, especially with the massive overhaul and selling a lot of players at the moment.
It is noted that now there are 10 players that I know they have released, such as Joao and Denis Zakaria whose loans have been completed as well as Havertz, Kovavic, Mendy, Kante, Koulibally, Bakayoko, Mount and Ruben Loftus-Cheek.
At the moment it seems that this is not over yet because it is possible that names like Pulisic, Odoi and Auba are likely to be released.
Hopefully this massive overhaul will not be a problem for Pochettino for next season.