No question there's concerns and the IOC has proven themselves over the years to be terrible at public relations. When the pandemic first took over the world, their initial response was "we're good for this summer, no backup plan." A week later, it was "we have to go to a backup plan"
Bach is a bad front man for the IOC, but the entire organization needs a swift kick in the ass, not just him. The Olympics are a massive logistical challenge. They can't be working on all sorts of plans at once or else they'll lose focus on what they're trying to do. Yes, they should at least have 1 backup plan beyond this summer, even if that plan means cancellation.