Remember Test is a new shard, probably based on Origin and not the "old" shards like Europa or Atlantic. Things are different on the live shards, most likely they removed the majority of blocking items for test over the years.
Not sure if you're reading the page correctly. The rocks in the picture above the 'blocking objects' heading are non-blocking. Only the picture below the heading is of blocking objects.
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Things are different on the live shards, most likely they removed the majority of blocking items for test over the years.