Is it bad style to use time-related adverbs (like "recently") in academic writing? I was going through my supervisors corrections and comments on a particular section of my thesis and I realised that he consistently removed words like "recently" when referring to literature, i.e. 


  "In a recently published study, monkeys were taught discrete algebra when listening to Beethoven through one ear, and Beyonce through the other"


I haven't had the opportunity to talk to him about it, so I figured I might get a reason as to why words/phrases like that are not desired in literature. Besides it might be helpful for others as well. 

Question(s): Is there something wrong with using phrases like "recent study"? If so, is it specific to a field (biomedical science in my case) or to a particular type of publication (thesis vs a regular article, for example)?
I find that there are some places where temporal context (e.g., "recently") is appropriate in discussing the literature, and others where it is not:


When I'm justifying the "Why now?  Why is this interesting?" nature of the work, typically in the introduction, timeliness is often important, and I'll use words like "recently."  This helps show that researchers are currently interested in the work in the paper, and can help motivate the work by showing how it's filling in a newly recognized gap.
When I'm surveying a landscape of work, on the other hand, it doesn't matter when work was done, just how it relates.  Then I would not note the time of publication.


Your colleague might have been over-zealous (some people have notions or phrases that they just hate), or you might have been giving information that wasn't actually useful in context, and thus should be deleted as distracting.  It's impossible to know without looking at the context in detail, but hopefully these principles can help guide how you think about it.