If made in good faith, yes. I’m not convinced that this is the case here, however, given that the author is fundamentally at odds with the scientific consensus on 2G, 3G and 4G safety, without acknowledging that he’s in the clear minority. In fact, he claims that the majority of relevant experts have signed the 5G moratorium, and this seems to not actually be the case. I actually think that disagreeing with the consensus, based on limited but potentially valid evidence, is completely acceptable. But he goes further and pretends to be in the majority, and that contrary evidence only marginally exists.
In sum, he makes demonstrably false claims about the current state of the scientific consensus, which makes me sceptical of everything else he says.