We do present the whole picture of a season here. The question is how much detail is suitable for Wikipedia. Car launches are trivial (do we also want dates of driver announcements, engine deals?) and there is basic information about testing (or will be once someone writes it for this page) so readers will know about the official tests. Remember that previous articles in the days of free testing, the more recent complete ones anyway, do not give any information on private tests, so the editors were cherry-picking information to begin with. Out of interest, what more would you even write for testing, times, no. of laps? We all know they are meaningless, so it will even be somewhat misleading to include that level of detail. As for Stats tables you mentioned above, they were simply a duplication of existing information.