Poleman Kobayashi, who inherited the top spot after Ferrari's Antonio Giovinazzi had his best lap deleted for a track limits infringement, made the comments after Brendon Hartley crashed the #8 Toyota GR010 HYBRID on his first lap out of the pits at Raidillon.
Technical director Pascal Vasselon confirmed the crash was "just a classic off on cold tyres, which we know can happen".
Speaking after qualifying, which Kobayashi said "was really tricky" after completing a new tyre run for the first time in the lead up to tomorrow's third round of the 2023 WEC, the #7 Toyota driver predicted that drivers will again have to be extra careful after exiting the pits in the race.
Asked by Autosport for his views on running new tyres, Kobayashi said: "The race is going to happen exactly the same.
"Fingers crossed for everyone to be safe, for myself as well, because we don’t want to lose [it] in that point.
"I think everybody is concerned. Everybody. Not only myself.
"Because it’s crazy dangerous, as you see how many people spinning.
"We are not really amateur, we are professional. We do nothing, just cruising around very smoothly.
"I feel really sorry for this scenario because it's really challenging with this size of tyre, without a blanket in this temperature."
Source: Autosport