You are also comparing Pochettino to Southgate who for me isn't a great example to compare to. I like Southgate but he's had 2 days with Kane, Pochettino analysed Kane over a 3 week period.
The England squad have been together for numerous weeks before the Champions League final, the finalists have 1-2 days with each other. There are rumours that Henderson is going to be on the bench tonight so does this reaffirm that Kane isn't fit or simply that Southgate prefers a settled first XI based on who he has worked with over the last couple of weeks?
It also needs to be taken into account that Harry has played 1 competitive game of football in 7 weeks. Tonight's game isn't a one off it's a semi final whereby the winning (and losing) team will be playing again in 3 days time. Is Southgate saying Kane isn't fit, Isn't fit enough to start or is he preserving his big assets for a game deemed more vital in the final? Does Southgate prefer Harry off of the bench unlike Pochettino did or does he have his eye on what he's been working on for a solid couple of weeks which of course won't involve Harry as he hasn't been with the camp?
It's all hear say but I still stand by my belief that Pochettino was right in giving our biggest asset a start last Saturday. We will never know if it was a horrendously wrong choice as we don't have the capacity to play the game again from the off. For me the big decision was if I tried should be Son or Lucas, not Lucas or Harry but that's just my opinion and everyone is entitled to theirs. It's a game of opinions and for me the decision of what happened with Harry was always going to be a dicey one that got praise if we had one and a bashing if we didn't. That's part and parcel of being a football manager.