I'll tell you why I wrote "scientists" in inverted commas. The ones who appeared in interviews in 2020 and 2021 were the ones who would say what the government wanted them to say, who would stick to the official narrative, and were probably hand-picked. I am in no doubt that the government and their spin doctors chose very carefully which scientists they would allow to speak.
There were many scientists and doctors arguing for lockdowns, for restrictions, and for mandatory vaccinations. There were also a good many arguing against these things as well. In a proper balanced debate, we would have heard from them as well. But we hardly heard a peep from them at all, especially in 2020 and 2021. Why not? Because they were aggressively silenced, cancelled, blackmailed, threatened with prison, or were too terrified to speak out, once they had seen the above happening to their colleagues. It's only now that some of these scientists are speaking out, and I doubt if the BBC is airing any of their views yet, and may never do so: the official narrative is still very much "lockdown was good, essential, did no real harm, the government got the big calls right".
The only "scientists" who existed as far as the government was concerned were the ones who would present the "correct" argument, the ones who would toe the line, the ones who would recite the correct script. Anyone else was a blasphemer, and duly cancelled. Those who were interviewed on the BBC were clearly hand-picked, briefed in advance, and I won't be surprised if it emerges that they were bribed. On some BBC interviews, you could watch the presenter actively interrupting somebody who was in danger of deviating from the script, who might have so much as hinted at a negative of lockdown. The government says "because the scientists said so". They mean the scientists whom they chose, because they would say the right thing.
I remember even noticing this kind of thing on a BBC Panorama programme in the mid-90s, demonising working parents, and I was only a teenager then. All the arguments and interviews presented working parents as "bad". It was not a balanced debate at all. And it looks as if the highly expensive Covid Inquiry will not be either. I'll eat my hat if the conclusion is not as follows: "we should have locked down harder, faster, longer, and we will next time".