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It's mentioned in some reports that this is a variable star. Isn't this a problem for the poor old Earth2-lings?
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It depends on the type of variablility. For this type of star it could not be any of the catastrophic large scale variability scenarios that occur with more massive stars. It might be a problem if it was a
flare star, which is probably the only type of catastrophic variability available to a M class star.
It may be as simple as the type of variability that afflicts our own sun. (Yes our sun comes under the category or a variable star). Sunspots cause our sun to vary it's solar flux over time which is classed as a
form of variability.
So it just might be nice and cosy there after all.
Except for my point above about if it is tidally locked. That could make life unpleasant.