What scientists say, should always be held in obeyance and regarded with neutrality. This is a key part of how they, themselves, form their own conclusions and an essential part of putting what they say, back through their own test.
'Mainstream' is what becomes visible over time and with due consideration. Its hard to be viewed as 'mainstream' when one is engaged in the exploration on the known boundaries of the respective contextualities of various theories, hypotheses, (etc). The trust needed there, I think, is directly proportional to scientists' displays of honesty. (Eg: active considerations of falsification of one's own hypotheses earns trust, yes?)
Looking for displays of honesty is a handy tool to have when reviewing claims.
Deliberate attempts to steam-roller those displays of honesty because of personally held ideologies, by way of dismissive aphorisms, truisms, ditties, pub-talk and invocations of so-called 'common sense', is itself a display of dishonesty, (IMO).