Scientists would like to pretend they are realists and are really discovering things like electrons, quarks, etc. However because they have never seen these things directly they are limited to being pragmatists, i.e. that which works is that which is true rather than that which is is true.
In order to continue to assuage the public and get grant money they have to claim they know things, but they also know that they can never know anything for sure. Thus the prevalence of all of the hedging words and phrases.
If the public understood that billions of dollars were spent to create CERN's particle collider and all that the scientists found were traces that strongly suggest there is a vibration in a field that might contribute to some of the mass in bosons, and they've arbitrarily decided to call that a Higgs "particle" then the public might not want to give them any more money.
It’s more the viciousness with which they attack anyone who threatens their turf that’s disturbing than the fact that science will always be in flux. They’ve discovered nothing yet that justifies the billions spent on the Hadron Super-collider. Now they want even more billions to build an even bigger one. And apparently some of the money goes to Hindu dances:
https://cds.cern.ch/record/745737?ln=en