Van der Poel was impressed, but also already mapped out a tactic... "Someone on Twitter had checked out my wattages on Strava, Van der Poel had seen that and he was apparently impressed. He let Tim know that he would drop me before it came to a sprint between the two of us, haha."
It's not so common that a professional rider is openly sharing their power numbers on Strava. So in that sense, Magnier is an exception. Keeping your wattages a secret can be a tactical (dis-)advanatage, but Magnier doesn't make a big deal of that. After all, his inspiration -
Mathieu van der Poel - didn't hide either. And it certainly didn't hurt him on the results side. "When I started racing, I loved being able to see Mathieu van der Poel's wattages."
Some teams are very strict in this regard, but with the Wolfpack, he found a team that's open to interactions with fans. "I know that there are many teams that forbid their riders, while fans and amateur cyclists enjoy seeing what professionals can do. At Soudal - Quick-Step, they certainly don't make a problem of it."