A Question for Anyone With an Answer to Share

Is it necessarily a good thing that analytic philosophy often does away with the idea of studying the work of one philosopher (with the exception of Kant, who is not explicitly analytic anyway) and instead lays the focus purely on "philosophy of x"? When I saw that we were working through Frege's systematisation of language and not just doing "philosophy of language" I felt more inclined and motivated to do it whilst seeing it along with its origins of a man at a time and a place. I feel it enables seeing the philosophy in its proper significance, not seeing it as an ever-present "thing" alongside other things in the world, but as a relation to things grounded in a historic way of being (which in its historicity must be rethought in terms of modes of being which are possible today). What do you think?