Yes. But in this case as there has been a recent announcement that could be significant, the trend continuing has some significance because it means the announcement likely⁰ had no detrimental effect¹.

We don't know absolutely nothing here: there is a new variable in play and this result gives us some evidence of the effect of that.

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[0] It _could_ have done, but something else countered it, though this is less likely according to Occam's razor.

[1] As opposed to reducing interest in the tools. The figures² apparently don't look to support an increase in interest though.

[2] Going by what others here are saying. The linked text doesn't state any numbers, nor does the announcement from the LibreOffice project, and I don't have time to go digging further ATM.