The 500-to-999-word group produced 220 of the dataset's 327 clicks. That is a real result inside this sample. It is also not evidence that writing 700 words causes clicks.
Page type changes the picture. Home pages generated 245 clicks across the full dataset, and several of those pages sit inside the 500-to-999-word group. Long articles and reports appear in the 1,000-plus group, but many were newer pages with limited exposure during the same window. Word count, age, site, topic, and template are tangled together.
The honest use of the field
Word count is useful as one feature among several. It can help a model distinguish glossary entries from articles, product specifications from home pages, or thin records from detailed explanations. It should not be converted into a minimum-length rule without controlling for those page types and other variables.
The no-click majority
Only 35 of 418 rows recorded at least one click. The zero-click rows still had impressions, which makes exposure an important denominator. A 1,200-word page with two impressions and no clicks did not receive the same test as a 600-word page with 2,000 impressions. Comparing click totals without exposure would reward whichever group happened to be shown most often.