You know this does raise an interesting point. I don't know what facts there would be to support this claim however I will say this - from what I have seen over many years, a reaction time of 0.1 or under is visibly a clear false start - like it's way out in front of the gun. Unless all of these sprinters have become epic starters, the reaction times numbers at least to me, seem a lot quicker than what we have seen in the past.
Christian Coleman (at least the doped version but that's irrelevant for the sake of this conversation) is/was universally regarded as the quickest out of the blocks on the planet - and it was visible right? When he won in Doha in 9.76, his reaction time was 0.128. In that hurdles final alone - Holloway 0.124, Cunningham 0.109, Martinez 0.126 - these guys all had a quicker jump out than Coleman?
Coleman in Saturdays 100m final alone - despite being 3/10ths slower, was out of the blocks in 0.104? I'm sorry that does not pass the plausibility test to me.
Without any quantifiable evidence at all it seems like this is recording the athletes out of the blocks in significantly less time than the past without modifying the legal "criteria" of the limit.