Okay, so I tried to look at some relations within the same season:
Result Strade - MSR - Ronde - Liège - Result WC ITT / OG ITT/ RR - Ranking of season in rider's career (PCS points)
Men's race.
MSR RvF LBL WC/OG Season Ranking
2007
1 Kolobnev - - 45 2 WCRR 2nd
2 Ljungqvist 97 45 - 24 WCRR 4th
3 Khalilov - DNF - DNF RR 3rd
2008
1 Cancellara 1 23 - 1 OGITT 2 OGRR best
2 Ballan 16 4 - 1 WCRR best
3 Gerdemann - - - best
2009
1 Löfqvist 107 - 52 33 WCRR 2nd
2 Wegmann 24 - 29 11 WCRR 6th
3 Elmiger 12 9 - - 7th
2010
1 Iglinskiy 8 8 104 - best
2 Löfqvist 27 - 29 - 5th
3 Rogers 25 5 WCITT 96WCRR 2nd
2011
1 Gilbert 3 9 1 17 WCRR best
2 Ballan 4 12 - - 6th
3 Cunego - - 16 - 7th
2012
1 Cancellara 2 DNF - 7 OGITT 106 RR 10th
2 Iglinskiy DNF 23 13 - 2nd
3 Gatto 14 45 - 13 2nd
2013
1 Moser 45 - 124 - 2nd
2 Sagan 2 2 - 7 WCITT 6 WCRR 2nd
3 Nocentini - - 14 DNF 6th
2014
1 Kwiatkowski DNF - 3 1st WC RR 4th
2 Sagan 10 16 - 43 WCRR 7th
3 Valverde - - 2 3rd WCRR 2nd
2015
1 Stybar 56 9 42 43 WCRR best
2 van Avermaet 19 3 - 23 WCRR 4th
3 Valverde 20 - 1 5 WCRR best
2016
1 Cancellara 31 2 - 1OGITT 34 OG RR 7th
2 Stybar 142 8 - OG DNF 45 WCRR 4th
3 Brambilla 80 - - - best
2017
1 Kwiatkowski 1 - 3 11 WCRR 2nd
2 van Avermaet 21 2 11 6 WCRR best
3 Wellens 18 - 35 110 WCRR 2nd
2018
1 Benoot - 8 23 DNF 2nd
2 Bardet - - 3 2 2nd
3 Van Aert - 9 - - 5th
2019
1 Alaphilippe 1 - 16 28 best
2 Fuglsang - - 1 12 best
3 Van Aert 6 14 - - 4th
2020
1 Van Aert 1 2 - 2 WCRR 2 WCITT Covid
2 Formolo 16 - - -
3 Schachmann - 98 DNF 9 WCRR
2021
1 Van der Poel 5 2 0 8 WCRR best
2 Alaphilippe 16 42 2 1 WCRR 3rd
3 Bernal - - - - 2nd
2022
1 Pogacar 5 4 - 6 WCITT 19WCRR best
2 Valverde - - 7 - not top 10
3 Asgreen - 23 - - 4th
So, what did I do all this for? I have no idea. Because I wanted to get an idea in numbers of how much luck is involved in being on the podium in Strade.
Of 48 seasons 26 were among the best or second best rider's season that year. In my eyes it shows that the Strade result was not a fluke and not a lucky hit.
The three monuments I looked at are MSR - because it is a monument that is so close to Strade that it can be an indicator of form if someone does well in both races in one year, LBL because it is basically a longer Strade without the sandy parts, and the Ronde, because it's a longer Strade with cobbles instead of gravel. The amount of top10 that the Strade medallists got in those races hint at the fact that it is indeed not luck you need.
Then I looked at the WC and OGs because those are one day races that are done with an entirely different team - and it still shows a bunch of WC and Olympic medals among the Strade podium guys, and even a bit more if you take the top10 into account. This indicates that these are really incredibly strong riders even if they ride without their trade team, that is, without their tactics.
Of course there are tactically apt riders who are just good at that with or without the team. But I think if one looks at those factors above in addition to each other, they show at least that the Strade medallists are incredibly strong riders, or, if they are somewhat "lesser" names, had amazing seasons in that year.
Another aspect to look at would be to count the number of ex crossers/ mtbs among those names.